How To Install 7 Speed Cassette On 8/9/10 Speed Hub
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- เผยแพร่เมื่อ 22 ส.ค. 2024
- I show what you need to do to mount a 7 speed cassette on to a bike wheel hub designed to fit 8, 9 or 10 speed cassettes. It involves mounting a 4.5mm spacer onto the hub. But you may need to file notches into the spacer to avoid having the cassette wobble. The wobble is caused by uneven rivets. I found these on Shimano cassettes.
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You can also file off the rivet ends and remove the rivets to make the back of the cassette flat. The purpose of the rivets is to keep the cogs aligned and together when they are off the bike for convenience (not necessity), but they don't serve any purpose when the cassette is mounted on the wheel.
Elaine M Cardente I would have filed or ground off the rivets too but hey RJ does really neat work. I worried the shifting ramps wouldn’t line up but they only go on one way.
This is the correct method for proper fitment.
you literally have a video for every question i have. Thanks!
I try.
RJ The Bike Guy hi I have a 9 speed cassette and want to go to 7 speed is it 4.5mm I need? Thanks
@Anthony Eaves Yes, a 4.5mm spacer is what you need. A Shimano 8/9/10 speed freehub has the same length freehub.
Ty ms
@@RJTheBikeGuy ty sir j
Thank you! You just saved me having to buy an 8 speed derailleur and shifter!! :D
You have the best videos... I read and read and read about by repairs, but at the end of the day, nothing beats the visuals on your videos. Thanks for sharing.... U make it seem simple. Thanks again.
I sware you dont get enough credit for these vids thank you you da man
Thank you so much!! I was thinking of just upgrading all my components to 9 speed, but it turned out to be more expensive than I thought. I'll upgrade someday, but for now, I get to get my bike rolling with my new rims for just a few additional bucks for the spacer.
Thanks much for posting this! Your video informed me about spacer thickness and how to do the notches. Just finished doing this on the wheel I bought. I first put without notches on the spacer. The spacer was aluminum and rivet heads pressed their marks on the spacer, there was some wobble. After filing out the notches, no wobble!
You are a champion RJ. Have just got a Trek 7.1Fx and put on some wheels with 8speed hub. Need to put a 7 speed cassette on. Cheers mate.
This is the EXACT information that I needed. Thanks so much RJ!!
HOPE THIS HELPS? PHUCKING YEESSS THANK YOU SO MUCH BIKE GUY... APPRECIATE YOUR EFFORTS
I literally have been searching for hours and you solved it for me. Thanks so much!
Thanks the video is 8 years old I just purchased a electric bike kit that needed cassette and spacers. This video was the answer.
Best bicycle videos on youtube man! Keep it up! I have a new wheelset on the way for my Trek 7.1 FX. I will be facing this exact scenario when I put the new rear wheel on my bike. Thanks for the super helpful videos. It is individuals like yourself who make youtube such an indispensable resource!
Holy Moly! RJ needs to be cloned so that we always have his wisdom on tap. Thank you so much for what you do for us home tinkerers from around the world. This was exactly my problem - trying to fit a 7 speed cassette on to a Mavic 217 speed hub. Now, sorted!
your videos are extremely helpful! have saved me a lot of money and time, i love vintage bikes and im having to upgrade things and your videos are just perfect. keep em coming! thanks.
You are amazing! Thank you! I have watched so many of your videos to help me rebuild my 25 year Mongoose Rockdile.
Thanks, that was exactly what I was looking for. Nothing like good quality videos to help amateurs figure out what we're supposed to be doing. (grin)
This info is a godsend. I am switching over to disc brakes (BB7s) on a V-Brake Trek 8.2 and have a two 7 Speed Cassettes (one 14-34 and the 11-34 which will be part of this upgrade). I can't find an affordable 7 Speed disc ready hub wheelset and this little tutorial just saved me a whole lot of grief! 4.5 mm spacer added to the list!
Thanks for the video this is driving me crazy that my cassette wiggles and i thought my new hubs is defective. Keep it up!
U are a Master, i learning so much with u channel, from Chile on South America, thanks
Once again, you solved my dilemma!
You're a freaking SAINT!!
thank you, saved me some aggravation with the spacer, probably would have went out searching for a cassette without the rivets.... now Im ready when the new wheels get here.
I needed about a millimeter shim to put a shimano HG-51 8 speed cassette onto my 8+9+10 speed hub Shimano FH-RS400. Thanks for the video !!
Most informative and useful video for common problem, thank you.
Thanks for the video RJ! It already helped a lot! If there is a leftover 8 spedd cassete, you could use it, even that you could only shift 7 gears of its 8. They would be compatible despite the reach of the gears, right? A problem would be to use 9 or higher cassetes (the spacing beteween gears would be different, as well the chain itself).
They are different. Only slightly different. 5mm spacing to 4.8mm spacing, but different. They can be made to work, but shifting will be imperfect.
www.sheldonbrown.com/cribsheet-spacing.html
And I am talking standard Shimano stuff, not any of the Campy, other brands, or variations.
Thank you so much for sharing your knowlodge RJ :) U r great!
Thanks bro. Just what I needed to know. I was looking to replace my freewheel. Unfortunately, they don't seem them in 11 - 28T anymore. So I found it easier to just convert it to a free hub system.
Man you recued My life with this video
Thanks! My cassette has three rivets- and is therefore flat- so should I be looking for a spacer that is about 6.5mm? Would I go to a bike shop or a hardware store to find that?
I thank you very much, you resolve my problem of changing (adapting) a 10 speed hub to accept a 7 speed cassette.
I had the wobbling described in the video, thanks so much for your help on this!!!
thanks mate.. saved from buying another sprocket..
here's my subs for you..
Hey RJ, hope you are well- how is your back? Thanks for the tip filing notches in the spacer. I'm assembling my trainer to prepare for another fun upstate NY winter!
Doing good. It still hurts sometimes randomly.
IMPORTANT NOTE: On some bikes the spacer goes on the outside, installed after the smallest cog and before the threaded retaining ring. Such was the case with my bike.
I installed the spacer on the inside, before installing the cassette, as shown in this video. When I went to test the bike, the chain would come off the biggest cog, when I got to the top gear. And, on the other extreme, when I tried to shift to the smallest cog it would only go to the next to the smallest cog. I figured out that the spacer needed to go on the outside of the cassette, installed after the cassette.
great video, I have a similar issue with a 9 speed cassette on a 10 speed up. Going to try a spacer 🤞
I love you; thank you for this perfect video and for saving me oodles of time and money and agony over this precise subject. My vintage Japanese-made Centurion Ironman TG Expert loves you too.
Your video still helping out! Thanks for sharing.
Thank you, R.J. Exactly what I needed to know.
great guy with great informative content, saving my ass from spending a lot of money from buying 8-9 speed shifter and cassette., hahaha thanks Sir, watching from the Philippines.,😊😁👌
Hello boss
Tanong ko lang kung san kayo nakabili ng spacer
Great video! a godsend 😁 that's next on my todo list of "upgrades" to have an easier time shifting with a downtube friction shifter on my 9s Trek 520 🙃 and since there arent any 7s cassettes with a range similar to HG200 (11-36) i'll have to transplant individual sprockets... oh well 🤷😁
did this on my bike, deore hub and sram cassette, can confirm that the sram cassette fitted perfectly without any modification on the spacer
I'm planning to customize a cassette with a 15-32t gear ratio by removong the 11t and 13t cog. My question is will there be issues when tightening the lockring against the 15t cog instead of 11t. Thanks in advance!
Is the procedure the same for 11 speed hub? I'm guessing a bigger spacer is needed.
Yep same. An 11 speed freehub is slightly wider than a 8/9/10 speed freehub.
Thanks RJ!
Very informative and clear. Covers everything. Excellent
Thanks!
Thanks RJ ! Will buy a 4.5 mm spacer and file it out.
Nice video. I"m guessing there is no way to put the spacer at the end of the hub (outermost) instead of at the base of the hub (innermost), right? From a mechanical standpoint it would make more sense to reduce the torque on the hub/bearing.
+Heinz Otto Not really, and it's generally not an issue anyway.
I always wondered what the notches were for.
You can also just remove the rivets (I used a grinder to grind off the rivet head, and a punch with a hammer to punch the rivets out) on the cassette and install the cogs individually. This way, there is no rivets that will contact the spacer and it will be much easier to clean the cogs individually later on. This will only work with some Shimano cassettes. Other Shimano cassettes have an internal spider/spacer that is riveted to all the cogs, making it more complex to remove all the rivets. The Shimano cassette that I've owned with a single internal spider/spacer does not have rivets that will interfer with the hub spacer, so removing its rivets is unnecessary.
I would rather modify a 50 cent spacer than a 25 dollar cassette.
May I know what specific model of shimano 7 speed cassete? I want to replace my threaded hubs 🥺
very helpfull thanks a lot i will do it this procedure
I found this video very helpful as I am about to do exactly the same and I was thinking about how unearth can I achieve this if anybody wants to do the same watch this videoit's done extremely slowly so that you can understand
Absolutely needed this info thank you!!
Is it the same if I want to put an 8-speed cassette on an 11-speed hub? I'm still on downtube friction shifting
Awesome vid. I am still thorn between getting vintage wheels for my old bike (which are hard to get) or a new set of Mavics/Shimano. Quick question from a bike newbie, where can I get a 4 1/2 spacer? I have found 5 mm but no less.
Bike shop.
www.amazon.com/exec/obidos/ASIN/B001CJVLWO/ref=nosim/youtube25-20
A potential problem I've had with this method is that the spacer moves the entire cassette outboard. This can create alignment issues with the chain rings. If you then move the chainrings outboard with a spacer on the bb, the FD may not reach outer chainring. I wonder if there's a way to put the spacer on top of the highest gear before the lockring. Then you would just have to move the RD inboard.
This is the way it is done.
You always save my ass Rj, thanks my friend.
do you have a link for spacer, having trouble finding one on amazon
Fantastic! Thank you.
Hi R.J., do you recommend putting a little bit of grease on the freewheel hub before installing a new cassette? I found some of rust on the freewheel body when removing an old cassette.
I put a little grease on the threads before installing.
I have a hub xtr frm900 Can it be converted to disc brake?
Please can you tell me will I need a spacer on a 10 speed mountain bike wide 11 x 42 cassette on a road bike hub 10 speed? Thank you in advance.
A 10 speed cassette generally takes a 1mm spacer.
I just ordered the FR-5 tool from PartTool but I did not get the one with the allen part ticking out. Will that be a problem to unscrew or re-tighten my cassette?
great job r j was the next to do list on my bike
*It helped a lot thank you for this and for sharing the knowledge*
sorry, that's what I meant because on forums people mention 4mm, 4.5mm even 3.4mm. I am trying to fit a 7 speed sunrace cassette to shimano 10 speed hub.
Where does one get the 4mm spacer?
hi burntkat, google georgehallscyclecentre , order 4.5 mm spacer regards Dennis .
@@denmerc3505 thank you sir!
@@denmerc3505 As far as filing the spacer to clear the rivets, why not just remove the rivets? Ziptie the (now loose) cassette to keep it organized when off the bike, otherwise just stack it in order when changing.
should we use two washer instead of one if using 7 speed?
Hi. I posted a 3D printable model of similar spacer and listed a link to your video as inspiration. I hope it's ok.
Thanks for a short and great video
Good day sir. Is it ok if i just have 2 2mm spacer 4 mm in total. Does half mm matter? Thanks!
You can try. There shouldn't be any play in the cassette.
Did it work mate?
Liked and subscribed, very helpful video, I've just put 2 new wheels on my bike, it's a new cassette as well, problem I've having is getting the tension correct for the gears, too tight then too slack to go back up.... it's trying to go back to first from second, but if i release tension to fix that then it's not tight enough in seventh to pull up to 6th🙄 if you get me, I've just put 2 plastic spacers behind the cassette and filed one down so the lock ring tightens. I've just come across your video...could this be causing my issue?
I've seen the pins but never thought anything of them. I've just got the bike bug so still learning.
what are the OD; ID; and thickness of the spacer... Metal aluminium or steel preferable? And did you use a rounded file or square shaped one to create the dips?
It's a 4.5mm cassette spacer. Other than thickness, cassette spacers are standard.
where did you knew that is 400 Nm ? your tool is special for setting a specific torque ? thank you
OMG. 40 Nm, not 400 Nm! It's noted on the lockring (Where I point at 4:20 in the video). 40Nm is common, though others might be different. I used a torque wrench with a 1" socket over my lockring tool.
I'm sure that what you did was cheaper, but couldn't you have just bought a 7speed hub replacement and used that? I'd love tom see a video to that effect. I have an old Raleigh Sport IGH 3peed that I am working on. I want to change the wheel size to 650b and fit wider tires and also go with a 6 or 7 speed cassette. The chain stay spacing is only 110mm and I am scared to space it out too far. Please share your wisdom. Thank you.
Why???
I got fed up with all the 10,11,12,13 ? speeds and compatibility issues and I have now gone back to 7 speed cassette with the beefier chain. I get a better chain line and without loosing any range. (I have a 7 sp 11-34) everything is working great. I don't have to worry about cross chaining either because the chain is only going up or down 3 cogs. I love it and I'm going to keep riding 7 sp. The only downside to the spacer method is that empty space which could have been used for better stablity when 7 speed hub body is used. I tried to find a dedicated 7 speed rear hub but no luck so far.(ebay seems bit sketchy especially none of the items I saw mentions the condition of the cup and cone. Do you have any suggestions? or should I just be happy with what I have and not be greedy? Thanks for all your videos.
So what setup are you currently running?
I ride 3x7 gears on a road bike. Cassette is 28 24 21 18 16 14 12. I'm using some old 9 speed cassettes to scavenge cogs so I can change my gearing to 28 24 21 19 17 16 12 to make gearing more useful to me since I rarely ride above 21mph. Need to use 7 speed spacers between cogs. Bike Gremlin says distance between cogs(aka cassette pitch) is 5 mm for 7 speed and 4.35 mm for 9 speed.
I always assumed 7 speed cogs were beefier/thicker but they're not really. Bike Gremlin site says 7 speed cogs are 1.85mm thick and 9 sp cogs are 1.78mm thick, only 7/100 mm difference.
Dude your are a god. I just wondered why the fuck it wobbled after i cleaned and lubed the hub and freehub and wanted to install a 7 speed casette instead of the 8 speed one. Thanks dude. RSX 7 speed with 8 speed casette is kinda wrong imo so thank you very much dude.
Hi!
Because there is only two rivets instead of three, is the cassette still sturdy and has no wobble and other possible moving, even the rivets only cover 1/3 of the cassettes area? I mean you can still use a cassette even one rivet or screw is lost?
Ari Vainio That was how that cassette was supposed to be. So it wasn't like a rivet was missing.
Have a pair of early Campy 8-speed Ergos & just purchased a set of wheels that are 9-speed Campy cassette. It is possible to convert the cassette to 8 speeds? Adding a spacing seems like an easy fix...
+Rich915 Sorry, Campagnolo stuff is different than the Shimano stuff I usually deal with. I am not sure how they are set up for compatibility.
Hi, I’m planning to buy Jetblack VOLT direct drive trainer that comes with an 11 speed cassette and supports 9/10 cassettes as well. I have a hybrid bike with 8 speed Microshift cassette which I’m thinking to use on the trainer by swapping the cassettes. Is this doable? What size spacers do I need? Any potential issues that can pop-up due to this.
I'm planning to buy a Tacx Neo trainer and to use my hybrid 7 speed cassette bike on it. The 4.5mm spacers from amazon are kosher (ihave a giant escape 3 all shimano parts)? I need a quiet trainer as my neighbour's wife is terminally ill and I'm too unfit to struggle in the cold and wet of winter!
thank you very much for this video! I will try your method soon!
AWESOME!!! Exactly what I needed. Thanks!
I just tried to put a 9 speed cassette onto a wheel that had 8 speeds and it is a hair too short! Is there any measurements listed detailing which rear hubs will hold how many gears?
What is too short? The free hub? There are no spacers?
You could also grind the rivets off, they are only there for packaging and delivery, they play no part once on the bike.
Can i still use 8 speed cogs even if my rd is 7 speed?
I have a MTB with a Shimano Tourney CS-HG200-8 cassette.
Cogs:
32-28-24-21-18-16-14-12
Crankset is a triple 24-34-42.
What I would like is to get rid of the 12 tooth cog because I really rarely use it, the 14 tooth is perfect for a top gear.
Could there be a 14-32, 8 speed cassette (or even a 7 speed) and then to add a first gear 34 or 36 tooth cog to have 8 gears?
You will have to research it.
I have a 7 speed freewheel mtb how do i install 7 speed casette on it?
excellent video.
The main problem was that one rivet was missing from this cassette, all I know that mine has all 3. I've installed the 4.5mm spacer along with 7speed cassette on a 8/9 speed hub without a problem and it sits as it should. This cassette seams new so variations should be taken into account.
Did you have problems with indexing after installing the cassette? I replaced the rear wheel on a Dahon D7; the new wheel was set up for an 8/9 speed, so I used a spacer like you did. However, I cannot get the derailleur to index correctly now - I can't switch to the small ring and my "2"gear takes me to the largest ring. Adjusting the H and L screws wasn't enough. Any hints or help?
+Jimmie Roan Are your shifters 7 speed? Did you readjust the cable? There are a lot of possibilities and I can't really answer without a lot more details.
I would like to know if I can convert my Ritchey 2x6 into a modern brake/speed shifter combo instead of the shifters on the lower part of the frame.
th-cam.com/video/SJJyl0xPrJ0/w-d-xo.html
Thanks and very helpful
Thanks Dear Master,it is very helpful.
If I’m adding a 9 speed Shimano cassette to a 10/11 speed hub which spacer would I use?
Awesome video. Thanks
Thanks for your time!
Thank you for this video!
Hello RJ, how about the 11 speed wheels? how long is the spacer needed to fit 7 speed casette?
lol what are you doing
can i install if even if my 7s cogs is threadtype?
th-cam.com/video/qcgz3-XyNkI/w-d-xo.html
I have a selection of thin spacers, roughly 1-2mm thick. Can I combine them to get to the required width? Is there any compromise in structural integrity by doing so as opposed to buying a new single, thicker spacer. It's a budget build and I really don't wanna spend any more money than possible. Also they are spacers I just had laying around. They are aluminium I believe but not sure if they were designed for the free hub or another part/headset? Thank you, Stuart.
That would be fine.
Umm like what spacer do I need to install an 8 speed cog on a 10 speed hub?