I cannot stress the importance of the step at 1:55 where he pushes the beads of the tyre into the centre of the rim. By doing this you give yourself at least an extra cm of play which is game changing. I learnt the importance of this whilst pissing about with 1970s pedal and pop mopeds which are notoriously impossible to fit the tyres on without wrapping the wheels in tape to force the beads together allowing you to position them in the deepest part of the rim during fitment
Excellent tutorial. Just got me a 12-speed, and I haven't worked on a bike in over 20 years. Your instructions were very clear, simple, and direct. After watching your video, I had no problem changing the tires and innertubes. Thanks.!!!
Excellent, thank you Si... needed this video today as went for a long solo ride in West Wales... weather was against me and then got a puncture 30 miles away from my car. Never replaced an inner tube and this video was spot on!! Thank you!!
Thank you GCN. I have tried and failed so many times before to change the inner tube and rate myself mechanically-incompetent. Somehow with this video everything just clicked and I've just changed my first ever inner tube!
Well done video, much the same way I've learned by trial and error how to change a tire (tyre) myself. One thing I do that may seem obsessive, but has come in useful is to line the main lettering of the tire up with the valve hole. This not only looks pro, but aids in finding the valve when it's dark and I have to change a tube on the side of the road.
Thanks for the tips - hadn't changed a wheel in years and was having trouble getting started. Watched this video and had it done in no time. Excellent explanation!
Thank you Thank you. I know little about changing a bike tyre but with your video I did it! But I had to go out and get that plastic tool(s) from a reliable on line source. Very low cost for the parts. and worked like a charm.
I popped my new inner tube while i was pumping it up as I’m tire wasnt fully seated and it escaped out. Then i watched this video. Missed a ride this morning. Going to go buy 3 tubes today. Damn it. Thanks for the video
Ok....watched this as haven’t changed a tyre before. Kind of knew the principle and this was very useful. I haven’t read all the comments but....I had problems seating the bead of the tyre.....I caused this because when I put the inner tube in, I used the valve locking nut which gave no give in where the inner tube was located in the rim. I tried a couple of times, but then removed the nut, and had sufficient flexibility in the inner tube to allow the tyre to seat correctly. Put the locking nut on once the tyre was pumped up to pressure.
thanks, worked. my dad used to break spoons doing this when we were little; an ordeal for a whole afternoon. thanks to gcn, i just did it in 30 minutes for both wheels.
I just fitted a used 700 c x 40 tyre with my hands to a Giant Cypress as I had no tools with me. I pressed the rim down hard on the floor where the valve was situated and that gave me loads of slack at the top and the tyre popped on easily. I had suffered a puncture while out on a tow path. Today I am fitting a 700 x 45 tyre so it will be interesting to see if a new tyre fits as easy.
I just realized how close christmas is! You might not agree, but I love school way more now that I'm in high school, so time flies faster. Thanks for that, refreshened, I'll be way to excited to get pissed off if I pinch a tire!!!
Pretty straightforward. The only bit that I find tricky when doing this myself is fixing the rear wheel back in place. The chain and cassette makes it tricky.
It's one thing I always struggle with on my gravel bike and the hybrid before it. The mountain bike was easy for some reason and more so when I put the folding tyres on it as they were really easy to put on but the narrower the tyre the harder I find it is to do it.
That was a nice soft thin flexible tyre. I have an old bike and the new tyre is thick hard rubber with zero flex. It is quite literally impossible to get that last bit into the rim. I am going to have to take it to a bike shop which is super annoying and I'll bet they will struggle with it too. Seeing you use that method with a thick rigid rubber tyre would be very interesting.
Very general description on how the thing is done, value is close to a nought. I tried to put my Schwalbe Winter tires after watching this, concluding that I got all I needed to get the job done. Big mistake that cost me a wasted evening and 1st deegree burns all over my fingers.
Its nice that the part with the putting back bit was skipped just by saying the tyre levers shouldn't be needed usually. Im here sitting next to one that is like few millimeters short and no levers to use, looking at videos for tips 😀
You could include the info that often tires have the company logo only in the right side of the tire, and this helps to see which way the tire goes! Also, centering the logo around your valve allows you to keep track of your tire pressure - if the tire pressure drops the tire will loosen and you might see the center of the logo moving away from the original spot around the valve!
I like that Si took the time to use laymen's terms for the bead and then explained what it's actually called so that true beginners would get it. Now if they could just explain the difference between pedaling, petaling, and peddling we would all be the richer for it.
Thanks a fuckin bunch for this video! It's not that it changed my life but I've been struggling with changing tires all my life and since I've bought a fancy pants bike a year ago and started watching your channel I've become really good at it! You've helped me tons😀🤩😀😍
i have a question: my bike's wheel size is 27, but i just found out that inner tube's size is 28. is that normal? because if i apply inner tube only, there is excessive length of that.
This was great! I just got my first bike, and am totally new to all of this sort of maintenance, so these videos will be super helpful. Thanks! You’ve gained a subscriber.
+Alasdair Sun Sorry but that's not the best advice. The best is this: Center the max pressure rating of the tire over the valve stem. It is often difficult to find and placing it by the stem makes it easy. That's what many intelligent mechanics do. ;-D
can you do a video on fitting a conti gatorskin hardshell tyre onto a deep section rim like a giant sl wheel,and more importantly getting the tyre off,there seems to be a bit of a problem going on with these tyre and wheel combo's.
you glossed over tyre rotation--my new tyre looking at the tread i think needs to be put on the correct way but there is nothing on the tyre to show this----can you advise please
What are your recommendations (or past video) for cleaning carbon wheels versus alloy? Particularly using degreaser on the cassette and how that reacts with the carbon. Thanks!
Hi, so I just got two 700x23/32 48 mm Presta Valve Inner Tube delivered and to check that it was not punctured, I pumpued the air into it without installing in the tire and it inflated like a checken leg from on of the side and then exploted from there. Is that normal, or was the tube not good? I checked the second one, it's inflating like the first one with a checken leg on a side and then I stopped because I might be able to return it. Please help me if you know.
Very well done. Thanks Si and crew! Just tiny small quibble: The pressure value on the side of a bicycle tire is not the "manufacturer's recommended pressure" as Si stated. If Si hadn't said that, then the video would be "flawless". What is the pressure rating on the side of a bicycle tire? It is the maximum allowable pressure. In other words, it is the pressure you should not exceed. THERE IS NO RECOMMENDED PRESSURE. I've written about this subject before and I apologize for continuing to harp on it but GCN keeps getting it wrong. You are treating bicycle tires like motor vehicle tires with regard to pressure. But the two are not the same and you're giving bad advice. The weight on car tires is dominated by the weight of the vehicle -- not the passengers. The weight on bicycle tires is dominated by the weight of the rider -- not the bicycle. This is why motor vehicle tires can have a "recommended pressure" but bicycle tires cannot. Bicycle tire pressure needs to vary depending on the weight of the rider and riders come is a very wide variety of weights. :-) My petite wife needs less bicycle tire pressure than her hulking giant of a husband (me). Bicycle tire pressure also needs to vary with the size of the tire (a 700 x 23 mm road tire needs more pressure than a 700 x 25 mm road tire) and the intended use (level road biking, high speed descent, hill climbing, heavy/high-speed cornering, mountain biking, jumping, etc.). GCN could easily devote a show to tire pressure. When you do, you can recommend some of the apps that are available for iOS and Android phones/devices that make bicycle tire pressure calculation easy for beginners. Finally, the best place to start when researching this subject is probably the 2009 article titled "PSI RX, Tire pressure and load" by Jan Heine published in the March 2009 issue of Adventure Cyclist magazine. As far as I'm aware, Jan Heine is the first to publish the 15% tire drop method for determining optimal bicycle tire pressure for general-purpose use (level to gently rolling hills). If you search the internet, you can find a pdf of his two-page article.
+D.Eldon Jan Heine wasn't the first to publish the 15% tire drop method. It dates back at least to 1989 (Bicycling Mag. June; pp. 172 ... "Inflated Claims" (How to Determine Your Ideal Tire Pressure) by Frank Berto. Jobst Brandt has some interesting remarks on that article here: yarchive.net/bike/tire_pressure.html (especially at the end of that page).
+D.Eldon I don't know. Going by that chart the pressure for my front tire would be significantly lower (more than 20%) than the manufacturer recommended minimal tire pressure.
+seahog32 It sounds like the size of the tire you're talking about is not a good match for you and you should consider a smaller tire size for the front wheel. I have the opposite problem -- I'm tall and, even though my body fat is low, I'm much heavier than most pro cyclists and I cannot use most 700 x 23 mm training clinchers. My favorite 23 mm Continental clincher is rated for a maximum of 110 psi (7.58 bar) and I need 130 psi (8.96 bar) for my rear wheel. So I have to pick a bigger tire (I use a 25 mm and 110 psi (7.58 bar) works great for me and the tire). Tire size and pressure is really just common sense and we see it practiced every day on the road. Heavy trucks use bigger tires than small cars. The recommended tire pressure is based on the vehicle weight and tire size. For us cyclists, we (the rider) are the majority of the weight. So our bicycle tire size and pressure should be based primarily on our weight. If a tire is too big for you because an "optimal" pressure would be too low, then choose a smaller tire size. By reducing the tire size, you'll raise the "optimal" pressure. And there is another reason for this: traction. As a lighter rider, you will exert less pressure on the same contact patch as a heavier rider. You can use a smaller tire with a smaller contact patch and still have as much or more traction than the heavier rider with the bigger tire. If a tire is too small for you because an "optimal" pressure would exceed the maximum pressure spec for the tire, then choose a bigger tire size. By increasing the tire size, you'll lower the "optimal" pressure. My recommendation to cyclists is this: Determine your "optimal" front and rear tire pressures for a variety of tire sizes. (I did this for 700 x 23, 25, 28 and 32 mm road tires.) Then shop for road tires that satisfy your requirements. Note: Tubular tires are usually rated for much higher pressures and could solve the problem for many heavier road cyclists. But I like being able to repair my own tires/tubes on the road, when needed. So most of my riding is done on clinchers. I'm not sure about tubeless tires -- I've got some rims that can accept both tubeless and clinchers but haven't yet tried the former. I don't like the idea of having to use messy sealants and the cleanup required to change a tire is unappealing. Besides, clinchers and tubes are often lighter than a tubeless version of the same model tire. So I don't see an advantage to tubeless for the road (mountain biking would be an entirely different matter because tire pressure is much lower (based on a larger desired tire drop for better traction in loose soil) and pinch flats are much more common).
+D.Eldon With all due respect, the choice of tires narrower than 23 mm is rather limited this days. Possibly a better suggestion would be using tubulars allowing generally for lower pressures but they are too much of a hustle for my liking. I may give a try to some tubeless tires one of these days as I own a tubeless compatible wheelset but only if can find them on sale. The current prices are ridiculous and the choice limited. Anyway, I assume the chart applies to clincher tires only.
"Simply pop it back on your bike" I think you should explain this part a bit more because It took me at least 10mins to work out wtf I was doing. Also most people don't have a stand like that and would be putting it on upside down like myself making it even more difficult.
Don't use tyre levers to get the tyre back on! 5:34 go back to the valve side, pinch the tyre walls together and rock the tyre back and forth to bed it fully into the rim. This frees up the tyre on the opposite side of the rim. Then use your thumbs. This channel is awesome but if you had a qaulified mechanic to do the maintenance videos it would be a lot better. WD40?
+Cathode Ray I think a qualified mechanic on the scene would ruin the effect of having Si or the like doing it as they do add alot to this channel. Unless of course the mechanic was Dougie Fresh.
+Cathode Ray The whole point of GCN's "how to" videos is to show you how to "do it yourself" (unqualified). If you want the job done like a "qualified mechanic", then take it to one. Qualified mechanics get paid to do this, so who pays the mechanic to come to GCN and show you for free? Anyone should be able to change tyre and tube without the advise of a "qualified mechanic". Pretty basic stuff.
When are you making the video where I can learn how to learn cycling? Last week I followed the "how to walk" course and it was succesful! Thnx in advance! ;-)
If tyre changing was that easy I'd be in bike maintenance heaven. My BMC (Alex Rims) requires hand and finger strength of two gorillas and I have now bought a tool that grips and lifts the tyre over the rim. Even that takes effort.
@@gcn Thanks for reply, appreciate it. I recently changed the rear tyre following a broken glass type puncture (tyre cut badly). I have average strength but could not push the bead at the most difficuly point to within 2cm of the rim. I now carry the tool with me but it does look a bit naff protruding from my under saddle bag. Luckily when I had the puncture my colleague rode home and then picked myself and bike up in car. If you know of a tyre that is know to be an easy fit please tell me. I'll be on to Wiggle in a shot!!!
Thanks. I accidentally hit a curb while going pretty fast downhill. There was sand next to it so the bike slipped and the rim bent. My knee was fine though
I love GCN. They're never condescending when showing how to do basic tasks.
This guy’s great.
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@@charithdevappriya4802 stfu
@@witsbro9168 Simon richardson
@@oskarg8219 dont be stupid
This guy makes it seem so easy, for me removing my winter tyres and putting back the old summer tyres took me literally hours
I cannot stress the importance of the step at 1:55 where he pushes the beads of the tyre into the centre of the rim.
By doing this you give yourself at least an extra cm of play which is game changing.
I learnt the importance of this whilst pissing about with 1970s pedal and pop mopeds which are notoriously impossible to fit the tyres on without wrapping the wheels in tape to force the beads together allowing you to position them in the deepest part of the rim during fitment
Same here.
I always allocate 2 + hours to change both tires.
Excellent tutorial. Just got me a 12-speed, and I haven't worked on a bike in over 20 years. Your instructions were very clear, simple, and direct. After watching your video, I had no problem changing the tires and innertubes. Thanks.!!!
Ll)
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All that time and I finally discovered what those hooks on tyre levers are made for! Thanks Si!
Excellent, thank you Si... needed this video today as went for a long solo ride in West Wales... weather was against me and then got a puncture 30 miles away from my car. Never replaced an inner tube and this video was spot on!! Thank you!!
I like how he demonstrates this on the easiest loosest tyre and tube I've ever seen 😅😅🎉
Thank you GCN. I have tried and failed so many times before to change the inner tube and rate myself mechanically-incompetent. Somehow with this video everything just clicked and I've just changed my first ever inner tube!
This video is simply amazing. I can now confidently change my tires with ease! Thank you, GCN!
Well done video, much the same way I've learned by trial and error how to change a tire (tyre) myself. One thing I do that may seem obsessive, but has come in useful is to line the main lettering of the tire up with the valve hole. This not only looks pro, but aids in finding the valve when it's dark and I have to change a tube on the side of the road.
Excellent tip! Thanks for this. 🙂
How refreshing to watch a tutorial by someone who doesn't waffle on endlessly! 💖
I am no mechanic! Followed the instructions as a first-timer - excellent! I did exactly as described and it was effortless. Many thanks.
Life saving help! Change my first tire and Tube for my daughter's new bike after it went flat. Save the Day!
Great reminder. Haven't done this for several decades and wanted a good refresher before I took on my sons bike. :-)
This helped a lot - I have been riding for a couple of years now, but have not changed a tyre before. Top advise, thank you.
I changed a few tyres on my bmx when i was a child completely forgot and had to watch this 😂 cheers
Global Cycling Network.....just one more reason to LOVE cycling! One of the best sites on TH-cam. Love these men and women...
By far the best tutorial I've seen on changing a tire. Thank you!
Thanks for a great guide - I changed both of my tyres after watching it. No problems at all!
Thanks for the tips - hadn't changed a wheel in years and was having trouble getting started. Watched this video and had it done in no time. Excellent explanation!
Awesome, nice one Grant!
Excellent! I never changed a tube/tire before but following these instructions I found it easy! Took me a while but did it successfully! Thanks!
Thank you Thank you. I know little about changing a bike tyre but with your video I did it! But I had to go out and get that plastic tool(s) from a reliable on line source. Very low cost for the parts. and worked like a charm.
Bikes aside... You are exceedingly professional and charismatic. Your kind of talent belongs on a major TV network.
I popped my new inner tube while i was pumping it up as I’m tire wasnt fully seated and it escaped out. Then i watched this video. Missed a ride this morning. Going to go buy 3 tubes today. Damn it. Thanks for the video
Thanks Si. First flat ever on my new road bike. This made it easy!
Probably the most i have learnt in a 5 min video. I wish you guys made videos for everything else - tax filing, raising children, restoring lawns :-D
Lol. I know right
Ok....watched this as haven’t changed a tyre before. Kind of knew the principle and this was very useful. I haven’t read all the comments but....I had problems seating the bead of the tyre.....I caused this because when I put the inner tube in, I used the valve locking nut which gave no give in where the inner tube was located in the rim. I tried a couple of times, but then removed the nut, and had sufficient flexibility in the inner tube to allow the tyre to seat correctly. Put the locking nut on once the tyre was pumped up to pressure.
Thank you Guys you saved my life today ❤ I got puncture and I was able to change to tire first time 🙏🏻🙏🏻
Excellent video thank god gcn realise that some of us are new to this game and take us through crystal clear !! Thank you all at GCN
Thank you Simon for your non condescending basics video
As other viewers seem to agree, it's getting them on that's the hard thing...
So helpful, I managed to put some new wider cyclocross tyres on, and just about managed!
thanks, worked. my dad used to break spoons doing this when we were little; an ordeal for a whole afternoon. thanks to gcn, i just did it in 30 minutes for both wheels.
Good video. Just changed my tyres for the first time
I just fitted a used 700 c x 40 tyre with my hands to a Giant Cypress as I had no tools with me. I pressed the rim down hard on the floor where the valve was situated and that gave me loads of slack at the top and the tyre popped on easily. I had suffered a puncture while out on a tow path. Today I am fitting a 700 x 45 tyre so it will be interesting to see if a new tyre fits as easy.
Wow, thanks so much, this is much better than some of the other tyre changing videos out there. Appreciate the details and tips along the way.
I just realized how close christmas is! You might not agree, but I love school way more now that I'm in high school, so time flies faster. Thanks for that, refreshened, I'll be way to excited to get pissed off if I pinch a tire!!!
Pretty straightforward. The only bit that I find tricky when doing this myself is fixing the rear wheel back in place. The chain and cassette makes it tricky.
Thanks! I just changed my own tires for the first time and it went perfectly.
GCN really gives me the clearest videos on how to do bicycle stuff!
Good video mate. Job done. Explain clearly no waffle.
Today, I learned what that little notch in my tire levers is for. Very useful information!
Putting the bead in the center of the rim to get the second on easier was a life saver!
That looks helpful, I already punctured 2 new inner tubes as my tire is too tight but I'll try your technique and see what happens, thanks for sharing
Great great video easy to follow - had a new ebike and reallllly didn’t wanna mess it up, accidentally over inflation and this was a great guide
It's one thing I always struggle with on my gravel bike and the hybrid before it. The mountain bike was easy for some reason and more so when I put the folding tyres on it as they were really easy to put on but the narrower the tyre the harder I find it is to do it.
Very helpful.
Just tried . It worked !
Cheers
Really useful beginner/refresher videos, thanks for the super useful and clear advice!
Thanks for posting a very helpful and informative tutorial!
That was a nice soft thin flexible tyre. I have an old bike and the new tyre is thick hard rubber with zero flex. It is quite literally impossible to get that last bit into the rim. I am going to have to take it to a bike shop which is super annoying and I'll bet they will struggle with it too. Seeing you use that method with a thick rigid rubber tyre would be very interesting.
Very general description on how the thing is done, value is close to a nought. I tried to put my Schwalbe Winter tires after watching this, concluding that I got all I needed to get the job done. Big mistake that cost me a wasted evening and 1st deegree burns all over my fingers.
How dafuq did you managed to fuck it up????
Its nice that the part with the putting back bit was skipped just by saying the tyre levers shouldn't be needed usually. Im here sitting next to one that is like few millimeters short and no levers to use, looking at videos for tips 😀
You could include the info that often tires have the company logo only in the right side of the tire, and this helps to see which way the tire goes!
Also, centering the logo around your valve allows you to keep track of your tire pressure - if the tire pressure drops the tire will loosen and you might see the center of the logo moving away from the original spot around the valve!
uh nice tip dude
Super useful, clear video. Thank you.
finally got it to work.. sorry about the rant
I managed to change the tyre on my bike today thanks to this video!
When changing a rear tyre or tube always work on the non cassette side of the wheel.
Could you explain why, please?
This video is 8 years ago and the graphic still good,like How?😂❤
Great video! To the point and easy to watch.
Great channel. Some tips on how to avoid high and low points would be good.
I'm planning to overhaul my road bike over Christmas. Could you do a video (or compilation) o everything from brakes and cables to BB and chainrings?
I remember years ago I needed a tyre lever to prise the tyre off/on because it was so tight, but now I can do that job without the use of a tool.
such a big help for my first time doing anything like this :) Thanks !!!
Would have been nice to see what you do with back tire regarding chain position off and back on and tightness when reinstalled
I like that Si took the time to use laymen's terms for the bead and then explained what it's actually called so that true beginners would get it. Now if they could just explain the difference between pedaling, petaling, and peddling we would all be the richer for it.
Thanks for this it was really helpful. I'm. Swapping generic hybrid tyres to something a bit more canal towpathy
Thank you for this great tutorial!
Unbelievably easy… when you know how! Thanks
Thanks a fuckin bunch for this video! It's not that it changed my life but I've been struggling with changing tires all my life and since I've bought a fancy pants bike a year ago and started watching your channel I've become really good at it! You've helped me tons😀🤩😀😍
i have a question: my bike's wheel size is 27, but i just found out that inner tube's size is 28. is that normal? because if i apply inner tube only, there is excessive length of that.
lovely , thank you for clear demo
getting the last bit on was over simplified, I tried and tried until my tire lever broke
I have tried and tried, until my rim got bent....This has happened with every rim I have ever owned...
same here.
I have never ever had a tyre go on that easy.
I had to let the air back out of the tube to fit the tire back over the rim, and I did have to use levers.
Just did it and it went on very easily. I recommend getting the right sized tire next time.
I just bought gravel bike and want to try out some road tires on it. Do I need to change out the tires and rims or just tires?
This just saved me. Thank you!
Glad it helped!
Great video 👏
This was really helpful
This was great! I just got my first bike, and am totally new to all of this sort of maintenance, so these videos will be super helpful. Thanks! You’ve gained a subscriber.
Thanks a lot. Very professional and good explanation... bravo
Remember to centre the tire logo above the valve stem!!
+Alasdair Sun Was just about to say that! #protip
+Alasdair Sun Why do that?
+TheCatAteMyShoe Originally mechanics did it to find the valve more easily. And it just looks pro.
+Alasdair Sun Sorry but that's not the best advice. The best is this: Center the max pressure rating of the tire over the valve stem. It is often difficult to find and placing it by the stem makes it easy. That's what many intelligent mechanics do. ;-D
+TheCatAteMyShoe you become faster when you do that. kind of like how racing stripes gives your car an extra 5 horse power
i want to change my 700x38c tyres to 700x23c tyres can i do this without changing the rim?
The best video... very well done! Thx for your time.
can you do a video on fitting a conti gatorskin hardshell tyre onto a deep section rim like a giant sl wheel,and more importantly getting the tyre off,there seems to be a bit of a problem going on with these tyre and wheel combo's.
you glossed over tyre rotation--my new tyre looking at the tread i think needs to be put on the correct way but there is nothing on the tyre to show this----can you advise please
Very helpful thank you.
Can't wait for The GCN Show!!!! :)
thx i done my first time today! Zaphiro pro to grandprix 5000. Thx it is easy done!
What are your recommendations (or past video) for cleaning carbon wheels versus alloy? Particularly using degreaser on the cassette and how that reacts with the carbon. Thanks!
Si likes to spray degreeser and lube everywhere. Check out how to Winterize Like. Pro ;-)
Tried it but both plastic tyre levers snapped. Are the levers that come in repair kits more liable to breaking than better quality levers?
Hi, so I just got two 700x23/32 48 mm Presta Valve Inner Tube delivered and to check that it was not punctured, I pumpued the air into it without installing in the tire and it inflated like a checken leg from on of the side and then exploted from there. Is that normal, or was the tube not good? I checked the second one, it's inflating like the first one with a checken leg on a side and then I stopped because I might be able to return it. Please help me if you know.
Hi. Please, how long does it typically take a person to change a bike tire?
Very well done. Thanks Si and crew! Just tiny small quibble: The pressure value on the side of a bicycle tire is not the "manufacturer's recommended pressure" as Si stated. If Si hadn't said that, then the video would be "flawless".
What is the pressure rating on the side of a bicycle tire? It is the maximum allowable pressure. In other words, it is the pressure you should not exceed. THERE IS NO RECOMMENDED PRESSURE.
I've written about this subject before and I apologize for continuing to harp on it but GCN keeps getting it wrong. You are treating bicycle tires like motor vehicle tires with regard to pressure. But the two are not the same and you're giving bad advice. The weight on car tires is dominated by the weight of the vehicle -- not the passengers. The weight on bicycle tires is dominated by the weight of the rider -- not the bicycle. This is why motor vehicle tires can have a "recommended pressure" but bicycle tires cannot. Bicycle tire pressure needs to vary depending on the weight of the rider and riders come is a very wide variety of weights. :-) My petite wife needs less bicycle tire pressure than her hulking giant of a husband (me).
Bicycle tire pressure also needs to vary with the size of the tire (a 700 x 23 mm road tire needs more pressure than a 700 x 25 mm road tire) and the intended use (level road biking, high speed descent, hill climbing, heavy/high-speed cornering, mountain biking, jumping, etc.).
GCN could easily devote a show to tire pressure. When you do, you can recommend some of the apps that are available for iOS and Android phones/devices that make bicycle tire pressure calculation easy for beginners.
Finally, the best place to start when researching this subject is probably the 2009 article titled "PSI RX, Tire pressure and load" by Jan Heine published in the March 2009 issue of Adventure Cyclist magazine. As far as I'm aware, Jan Heine is the first to publish the 15% tire drop method for determining optimal bicycle tire pressure for general-purpose use (level to gently rolling hills). If you search the internet, you can find a pdf of his two-page article.
+D.Eldon Jan Heine wasn't the first to publish the 15% tire drop method. It dates back at least to 1989 (Bicycling Mag. June; pp. 172 ... "Inflated Claims" (How to Determine Your Ideal Tire Pressure) by Frank Berto. Jobst Brandt has some interesting remarks on that article here: yarchive.net/bike/tire_pressure.html (especially at the end of that page).
+leporello7 Thanks for the information and reference. Much appreciated. It's nice to give credit were credit is due.
+D.Eldon I don't know. Going by that chart the pressure for my front tire would be significantly lower (more than 20%) than the manufacturer recommended minimal tire pressure.
+seahog32 It sounds like the size of the tire you're talking about is not a good match for you and you should consider a smaller tire size for the front wheel. I have the opposite problem -- I'm tall and, even though my body fat is low, I'm much heavier than most pro cyclists and I cannot use most 700 x 23 mm training clinchers. My favorite 23 mm Continental clincher is rated for a maximum of 110 psi (7.58 bar) and I need 130 psi (8.96 bar) for my rear wheel. So I have to pick a bigger tire (I use a 25 mm and 110 psi (7.58 bar) works great for me and the tire).
Tire size and pressure is really just common sense and we see it practiced every day on the road. Heavy trucks use bigger tires than small cars. The recommended tire pressure is based on the vehicle weight and tire size. For us cyclists, we (the rider) are the majority of the weight. So our bicycle tire size and pressure should be based primarily on our weight.
If a tire is too big for you because an "optimal" pressure would be too low, then choose a smaller tire size. By reducing the tire size, you'll raise the "optimal" pressure. And there is another reason for this: traction. As a lighter rider, you will exert less pressure on the same contact patch as a heavier rider. You can use a smaller tire with a smaller contact patch and still have as much or more traction than the heavier rider with the bigger tire.
If a tire is too small for you because an "optimal" pressure would exceed the maximum pressure spec for the tire, then choose a bigger tire size. By increasing the tire size, you'll lower the "optimal" pressure.
My recommendation to cyclists is this: Determine your "optimal" front and rear tire pressures for a variety of tire sizes. (I did this for 700 x 23, 25, 28 and 32 mm road tires.) Then shop for road tires that satisfy your requirements.
Note: Tubular tires are usually rated for much higher pressures and could solve the problem for many heavier road cyclists. But I like being able to repair my own tires/tubes on the road, when needed. So most of my riding is done on clinchers. I'm not sure about tubeless tires -- I've got some rims that can accept both tubeless and clinchers but haven't yet tried the former. I don't like the idea of having to use messy sealants and the cleanup required to change a tire is unappealing. Besides, clinchers and tubes are often lighter than a tubeless version of the same model tire. So I don't see an advantage to tubeless for the road (mountain biking would be an entirely different matter because tire pressure is much lower (based on a larger desired tire drop for better traction in loose soil) and pinch flats are much more common).
+D.Eldon With all due respect, the choice of tires narrower than 23 mm is rather limited this days. Possibly a better suggestion would be using tubulars allowing generally for lower pressures but they are too much of a hustle for my liking. I may give a try to some tubeless tires one of these days as I own a tubeless compatible wheelset but only if can find them on sale. The current prices are ridiculous and the choice limited. Anyway, I assume the chart applies to clincher tires only.
"Simply pop it back on your bike" I think you should explain this part a bit more because It took me at least 10mins to work out wtf I was doing. Also most people don't have a stand like that and would be putting it on upside down like myself making it even more difficult.
Really good video thank you.
Very informative, thanks!
Let say if I don'tt have the leverage then I use something else idk maybe philip screw driver will it work?
Don't use tyre levers to get the tyre back on! 5:34 go back to the valve side, pinch the tyre walls together and rock the tyre back and forth to bed it fully into the rim. This frees up the tyre on the opposite side of the rim. Then use your thumbs.
This channel is awesome but if you had a qaulified mechanic to do the maintenance videos it would be a lot better. WD40?
+Cathode Ray WD40 works.
+Cathode Ray
careful. Simon uses WD40 only as a degreaser and a deodorant. and it works.
+Cathode Ray I think a qualified mechanic on the scene would ruin the effect of having Si or the like doing it as they do add alot to this channel. Unless of course the mechanic was Dougie Fresh.
+Cathode Ray The whole point of GCN's "how to" videos is to show you how to "do it yourself" (unqualified). If you want the job done like a "qualified mechanic", then take it to one.
Qualified mechanics get paid to do this, so who pays the mechanic to come to GCN and show you for free? Anyone should be able to change tyre and tube without the advise of a "qualified mechanic". Pretty basic stuff.
When are you making the video where I can learn how to learn cycling?
Last week I followed the "how to walk" course and it was succesful!
Thnx in advance! ;-)
If tyre changing was that easy I'd be in bike maintenance heaven. My BMC (Alex Rims) requires hand and finger strength of two gorillas and I have now bought a tool that grips and lifts the tyre over the rim. Even that takes effort.
Sounds like a difficult tyre - have you considered changing them?
@@gcn Thanks for reply, appreciate it. I recently changed the rear tyre following a broken glass type puncture (tyre cut badly). I have average strength but could not push the bead at the most difficuly point to within 2cm of the rim. I now carry the tool with me but it does look a bit naff protruding from my under saddle bag. Luckily when I had the puncture my colleague rode home and then picked myself and bike up in car. If you know of a tyre that is know to be an easy fit please tell me. I'll be on to Wiggle in a shot!!!
Thanks. I accidentally hit a curb while going pretty fast downhill. There was sand next to it so the bike slipped and the rim bent. My knee was fine though
This is definitely professional and love it…
Boom - nailed it. Thanks.