Easy Folding bike modification - replace crank increase speed! How to make Folding bike go faster
ฝัง
- เผยแพร่เมื่อ 5 ม.ค. 2022
- How to replace crank on folding bike, how to make your folding bike go faster!
In this video I show how to make your folding bike go faster by replacing the crank cog. I replace the crank with parts from a mountain bike to increase the speed by 20%. This folding bike modification is very easy and can be done with simple tools!
--------------------------------------------------------------------------------------------------------------------------------------------------
JOIN: th-cam.com/users/hobocyclistjoin
Read more about folding bikes here: www.hobocyclist.com/folding-b...
See Channel Viewers recent purchases here: hobocyclist.com/viewer-purchases
---------------------------------------------------------------------------------------------------------------------------------------------------
First step is to get a 14mm socket and remove the bolt in the center of the crank, once removed you can fit the crank pulling tool. Use an adjustable wrench to turn the crank pulling tool until it pulls the crank arm free from the bottom bracket.
Now repeat the process on the donor bike and swap the parts. Fit crank arms by tapping onto bottom bracket and then replace the bolt. Now your cheap second hand folding bike is as fast as a high end expensive folding bike!
Folding bike modifications and accessories that will turn a budget folding bike into a deluxe riding machine, or get some bike tools to start stripping old bikes for parts!
CRANK PULLING TOOL amzn.to/3JGGOSY
SOCKET SET amzn.to/3qQXQoJ
ADJUSTABLE WRENCH amzn.to/3qSnw4o
I have added or replaced the following items on my bikes:
Gel bike seat amzn.to/3wanAyc
All terrain tires amzn.to/39lweQE
Shimano 6 speed gear shifter amzn.to/3w8cKJ9
Alloy brake levers amzn.to/31p61wi
front luggage carrier amzn.to/3ddm2Lf
rear luggage carrier amzn.to/3ddQTr7
Bike chain lock amzn.to/3cu9PCM
I like to buy second hand folding bikes, however some viewers of this channel have purchased the highly rated ZizzO folding bikes here amzn.to/3zitoXx
support the channel by shopping any of the items above, as an amazon affiliate i earn very small commissions, thank you very much!
As an amazon affiliate I earn from qualifying purchases
thanks for watching and comments! - แนวปฏิบัติและการใช้ชีวิต
you're the reason why I got back to cycling man, currently looking to buy a folding bike in london with a £100-150 budget (second hand)
Cool 😎 that’s choice! You’ll be able to find something good in the city with 100 quid, fun project too. If u make a vid send through the link!
Really great up grade 👏
yup simple and effective!
Did this to my dahon. Makes a world of a difference 😍 that and the new nexus 8 speed hun😅
Awesome!
I'm going to do the same mod I've got an E-bike here in the UK similar to the tern called e plus city folder with a 250 watt front hub and find my legs are turning really fast and not being able to go faster than the motor that cuts out at 15 mph so will be trying 48 teeth crank and hopefully that will give me more top speed thanks for the information 🚴♂
sounds like a good plan, lots of easy small modifications can be done with second hand parts and its really fun too!
what bike do you have? I have the Ouxi v1 pro and im thinking about doing this aswell.
Hi Andy great video can I use the original chain when I do the upgrade or will I have to buy a new chain
I just use the same chain or maybe you can use the one off a mountain bike or add links if you need 👍⛺️🌴🚲
I went the other direction, as it's quite HILLY where I live. My Dahon D7 had 52 teeth on the front chainring and it was just about useless trying to climb these hills around here with THAT... those big long hills were awful-- fuggetaboutit. I went down to 44 teeth and what a difference. I can climb the big hills and the bike is a pleasure to ride. I'd sacrifice top speed for hill climbing ability any day, as I'm more into comfort than speed and I ride for transportation, not necessarily exercise. A lot has to do with where you live, whether it's flat or hilly. I later got an additional 20" folding bike - a Camp Thunderbolt with two chain rings on the front, 52 and 44 teeth - and it's the most versatile. It's my daily rider.
Nice! Those are great bikes, and perfect idea to adjust chain ring size for the terrain. how good is it riding downhill too?
@@hobocyclist Downhill , okay, but I'm not a speed demon. At lot of times, I just coast downhill.
@@SteffiReitsch
You could have upgraded to an 11 gear 10 to 42 set. And changed up your wheel set to 451 prolite aero wheels. With Schwalbe 1.1" racing tires.And you would have got 20 mph plus on the flat. And be able to climb hills like a boss with the 52--42 gearing ratio. And lighter bike from the upgrades.
That's what my friend did with his Dahon D7. And I'm doing it with my Carrera intercity budget folder. Just the wheel set alone has shaved 3.5lbs off the bikes weight. From 29lbs to 25.5lbs just on wheels.
This is the beauty of upgrades. You can turn a budget bike into a superbike at your own pace financially. And it's so much fun to see the improvements in performance.
@@fender1000100 Yeah yeah, I could have spent a ton of money on upgrades, but I'm happy with what I've got -- Camp Thunderbolt 20'' folding bike. Two chain rings on the front, 8 gears in the back, along with disc brakes, milk crate on the back and anther rack in front. All at an affordable price.I'd Have to count the number of teeth, I forgot, but it gets me around just fine and there's lots of hills here in Atlanta. I ride my Dahon sometimes too as a backup. No car, don't want one, I'm a bicycle girl.
@@SteffiReitsch
Same here I'm 58 and have been riding bikes from age 9. Never owned a car. More power to you.
If I replace my current 48 teeth crank,
Do I need to replace the
Chain and
Rear gear as well ?
I am thinking of replacing my current 48 teeth crank with something higher to see if I can get more speed of my ebike. Also right now I have a 7 speed Shimano gear.
Should be fine, I’m no pro but I like to diy and don’t be afraid to try! All the best and let us know how you go 👍🚲
Where have you found the sweat spot between small enough for hills and large enough for speed?
That crank has 3 cogs so you can move the chain manually for even more gears for the hills
I did exactly that with my 20 inch folder and a friend's spare 3x crank. It's annoying because downshifting on the rear sprocket causes the chain to drop to a lower gear on the crank. Now I'm looking for either a working FD and shifter or a single speed 52t crank.
Aha yes this could happen shifting down depending on design of the crank & gear ratio on cluster. I find it useful to have the other smaller gear on the crank at times for hill climbing even if I have to shift it manually!! 👍⛺️🚲🌴😉
*I have a Driveline 75 tooth chainring on my 20" folding bike and the difference between the stock 44 tooth and the driveline 75 tooth is night and day. Top speed giving it all I've got when bike was stock: 13mph, after 75T chainring: 40mph. I also upgraded the tires to Continental 1.25" Speed tires, the stock square tapered bottom bracket to Hollowtech and that made a huge difference in speed and torque as well.*
damn thats fast! excellent upgrades to your machine!
75 tooth? Sheesh. Don't try to climb a hill on that thing.
@@SteffiReitsch *My rear cassette is 11-36T so if I shift to that 36T cog I can climb the steepest of hills easily. I rarely have to shift all the way down to the granny gear to make it up hills around here though. My bike is so light with the carbon aero wheels I just installed that it flies up hills.*
@@bigtexas7580 Nice. You've got it all figured out. A granny gear takes care of it.
@@bigtexas7580 i was gonna ask about your rear cassette. I have a 56T chainring on my 20inch bifold and i struggle getting up some hills even with my 11 speed rear casette. Though I believe my rear casette only goes to 32T. Cool setup would like to see a picture
I went the other way and put a smaller one on to get up hills easier
Good plan, there is 3 cogs on that crank so plenty of options!
If I paired a 52t front crank with 11-34t rear freewheel, how would that fare? Would I gain speed, torque, etc. Would it be harder to pedal? Would there be pedal fatigue?
Sounds like a great project 👍 probably won’t know until you try it, let me know how it goes ⚙️🚲
All of this depends on the power and settings on your ebike. I'm watching this and I need this to hopefully not ghost pedal at 30 mph lol.
52 teeth remains perfection. If you pair that with an 11 gear cassette. 10 to 42. And change your wheel set to 451 21.75" aero wheels. With race 1.1 tires. You will fly. And climb hills like a boss.
This sounds great 👍 Ultimate machine for speed 🚲🚀
@@hobocyclist
Absolutely. It's quite amazing how much weight you can take off even a budget folder with a few upgrades. My friend knocked over 5lbs of weight (2.6KG) off a 30lb folder. Just by upgrading the wheels and crankset. It now weighs 24.4lbs.
@@fender1000100 Thats light! i think the Tern weighed about 11.5kg, the cheap bike i use right now weighs a only slightly more. its important when you take it on an aircraft. My whole [package for the airline weighed 19kg last time I flew,, that included my tent, cooking gear, tools etc
I wish we had bicycle scrap yards here in the United States. If you brought that bicycle scrap yard the New York City, Portland Oregon, or Sanfrancisco CA, you would be a rich man.
Growing up we kept a huge bike pile .picked from the side of the road .
The bike scrap yard in Japan were incredible, massive piles of bikes.. they were packing them into containers probably send them to Africa!
@@hobocyclist imagine if you could salvage all of those good parts. Hope they are being recycled and not trashed. The human race really needs to be more mindful of reusing and recycling all things, there is far to much wasted resources in the world.
there are websites that you can buy a container load, ive had thoughts of doing this. they guarantee a certain amount of bicycles and "mostly folders" or "mostly single speed". id like to pick and pack the bikes myself if im spending 60k
this place but there are many others www.japanusedbicycles.com/
Upping the gear ratio makes it harder to pedal unless you know how many gear inches you can take without strain. Calculate this when choosing a bigger chainring.
Good tip!
Will you need to replace the chain if you get a bigger crank?
I’ve not had to replace the chain for this size crank , if you put on a huge big one then probably would need a longer chain
@@hobocyclist
I think a 60 tooth chain ring is the ultimate size. You will have all the speed you need for a folder. And still be able to handle most hills. So long as you have at least an 8 gear cassette. And the bike is sub 30lbs in total weight.
@@fender1000100 this sounds like the ultimate for sure! id love to try it, id imagine the speed would be as good as a full size bike
@@hobocyclist
Yes a guy called Brian on a channel (I bike unfolded). Has a Tern verge P10 with a 60 tooth chainring. And an 11 to 42 10 speed rear cassette. And it moves. He says he can hang with the roadies with that gearing. I have the regular P10 with a 53 tooth chain ring. And thats fast enough for me. I can get over 20mph on it on the flat. And it climbs really good.
@@fender1000100 cool yeah im subscribed to Brian's channel hes into more tech andnew bikes im onto second hand and diy. YT is great like that!
Don't you have to buy a longer chain? And can I do this to a folding e bike?
It depends, you can get the correct length by wrapping it around the front cog and the largest rear cog then add a few links. I always like to leave 2 or 3 extra links in just in case the chain breaks when I'm out and have to do an emergency repair.
Another issue: sometimes these cheaper 20" folders have 155mm cranks. Upgrade to 165 or 170mm cranks along with the bigger chain rings and it becomes like a full size bike. Faster and happy knees!
Yes! 👍🚲 Good tips!!
that's only half of the truth. First, You don't need three cogs in front, so You could have taken the other two off, as there is no front derailleur. second, and most importantly - if You make the front cog bigger, You lose better gear ratio for going uphill....so it's an upgrade that makes You get something but You also lose something.