How To Swap The Free Hub Body On Your Wahoo KICKR Smart Trainer For A SRAM 12-Speed Cassette
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- Опубліковано 27 лип 2024
- Recently I purchased a 2021 KICKR Smart Trainer from Wahoo and it comes stock with a Sun Race 11-speed cassette. I personally run a SRAM 12-speed cassette on my Specialized Allez Sprint which is my main road race bike. I couldn't find much good information on the internet explaining how to swap your free hub body on the Wahoo KICKR to be compatible with a new SRAM 12-speed cassette.
After a bit of research, I found that you need to install an XD/XDR Freehub Body, Wahoo does provide this kit so you can use that, but most local bike shops have them as well. I was lucky enough to pick up an XD/XDR Freehub Body from UCCyclery here in San Diego when I actually picked up the new 2021 KICKR Smart Trainer.
In this video, I walk you through the precise steps to take to pull off the original 11-speed cassette and get a new SRAM 12-speed installed and ready to ride.
To be clear, you don't need to shift for basic intervals on the KICKR Smart Trainer as it has built in ERG mode that is compatible with TranerRoad, Zwift, and other indoor cycling training apps.
Ideally though, the new KICKR will allow full range of shifting with a SRAM setup for Zwift racing and non-ERG applications once the XD/XDR hub is installed and ready to go.
0:00 - Introduction
0:56 - Tools Needed to Swap The KICKR Freehub
2:12 - Removing The KICKR 11-Speed Cassette
3:45 - Removing The KICKR Freehub Body
5:14 - Greasing Your New Freehub Body
6:16 - Installing The XDR Freehub Body
7:22 - Installing Your SRAM 12-Speed Cassette
8:17 - Choosing The Correct Spacer For Your Thru-Axle
9:39 - Proof - Спорт
Literally the only video that properly shows how to install
Happy to help! I thought the same when I was doing it so I was like maaaan maybe I can help out 😆
Hey man, this video REALLY helped me - particularly the bit where you shows the different spacers/bolts at the end. I would have been completely stuck without you. Keep the videos coming!
Jack! Stoked I was able to help. Enjoy the KICKR 🤘🏼
Very helpful and informative. Most concise video explaining how to set up 12 speed SRAM. Now if I can only find an available cassette because everything is on back order. 🤬🤬
Thanks so much! Glad I could help. Sorry I can’t track you down a cassette though 😩 this whole parts problem is really starting to ruin everyone’s day.
Thank god for this video , just ordered the kickrcore for my Cervelo soloist , not only did I need to buy the axel kit also needed the xd/xdr free hub as well !! This is a live saver for when I receive it and assembly
Happy to help! Enjoy trainer szn
Thanks for this video. I just swapped in an XDR freehub body and this was exactly what I was looking for.
Love to hear it, Michael! Happy training 🤘🏼
Great video! Super helpful. Thanks for making it!
Well done bro. Just got my Kickr core and was looking for this specific set up.
Thank you! Happy to help. And enjoy the indoor spin
Dude! You absolutely nailed it!! Exactly what I needed. Thanks for putting this up.
No problem! Happy to help 😊
Thanks for listing the tools and showing the spacers at the end.
No problemo, Jonathan! Happy to help. Good luck with the training.
Quick and easy. Thanks for the video!
Huge help bud 🙏. Exactly what I needed
Stoked to hear it! Happy spinning 🤙🏼
This is super helpful, thank you!
Sweet and very informative!! Got it done with your help!! Thank you, thank you, thank you!!!
Glad I could help, Christy! Enjoy your training 🤘🏼😊
Thanks, and appreciate you taking the time to demonstrate how to do this conversion. Very useful!
No problem, Jesse. Glad I could help out. Appreciate you watching. Happy riding, my dude!
Thanks. Really pragmatic and helpful!
No problem! Happy to help. Thanks for watchin’
Excellent video - this really helped me!
Easy and to the point. Great content!
Glad to help!
super useful man! thanks!
Yo! No problem glad to help.
Thanks for the video. I contacted Wahoo support and you don't need to apply grease to the pawls on the freehub. Really you don't need to apply any grease to anything but you can optionally apply some to where the cassette mounts onto the freehub.
Really brilliant. Was stuck and was getting sheering of cassette then watched your vid and realised thru axle adaptor not on. Thanks a million :-)
Happy to help! Happy riding
Very helpful indeed! 💯 (Still my cassette rubs against the frame, and once I tighten the thru axle it won’t spin in either direction at all. By the looks of it, on YOUR cassette the adapter C seems to stick out further maybe one or two millimeters. Any suggestions? 🙇🏻
@@petrusbarbatusberolinensis2102 you might need to be running the 148 side. Are you on a MTB or road? Also, you’re sure it’s a 142mm thru axle and not QR? That could be it
Thanks for covering all the install, especially on the slip on spacer ,great help 😊
No problem! Happy to help. Happy trainer riding 🤘🏼
Hi! Nice video I guess I can handle it!!
One minor question: what kind of grease did you use? Anything special needed?
Thanks!
This was exactly what I was looking for! Thank you!!
No problem, Ty! Happy to help
Thanks . great video. where did you get your 12 speed cassette? from Wahoo website or just any brand 12 speed cassette. THanks
I actually picked it up from my LBS but I recommend matching whatever 12 speed cassette you’ve got on your bike now. Hope that helps!
Bro, since you have done this, have you had some shifting issues at all? I have had some wild chain slip and climbing happening in the mid range of my force cassette? Please let me know if this has happen for you and if so how have you solved it?
Sup man! I’ve put in probably 10 trainer sessions on it and I haven’t noticed that…but come to think of it I did have one wild run up I believe one time just doing a free ride in Z2 but to be honest I attributed that one to my stupid bent derailleur hanger. Jumped like three gears but I was also cross chaining super hard. I’ll give it a few more rides and let you know if the issue becomes a recurring one, I’ve been able to shift through the cassette mostly with ease. I will say it definitely does not like cross chaining.
Thanks for the video, nice and clear 👍👍 quick question; can you use any multipurpose grease for the hub? TIA 👍
You can snag the park tool generic stuff and that works. I used marine grease but that’s just me.
@@WaltDoesBikes many thanks for the info 👍👍
great video. which cassette did you get? If my bike is SRAM Red, does the trainer need a Red cassette? Or can I use a cheaper Rival cassette? Or does Sunrace 12 speed cassettes work as well? Thanks
Hey Sean! I’m running the Rival Cassette so far with no issues. I’m on FORCE AXS and haven’t had a problem. I’m not sure about the Sunrace but I can say my setup has been solid with the Rival
If anything changes I can let you know but so far so good!
The SRAM road casettes are compatible between each other, difference is mainly the material. Just make sure to get the same sprocket ranges.
Hey man, thanks for this.
Question: did you have any issues with the spacer?
I’ve installed everything but there’s too much space and the thru axle doesn’t go all the way through. Also means current index of derailleur is butched.
Any ideas?
Pretty sure I left the spacer out. It’s been a while but I think I mentioned it in the video 😬
First off, your video is super helpful. But, my install didn’t yield such smooth results. Major slippage and I can’t get it remedied and my install is a SRAM gx and I’m using a MTB. So, my question.. I’m certain I need the spacer behind the cassette, but what about the small spacer ring that goes on the hub before the cassette? My cassette is a 12 speed. I didn’t see you install it, but I keep reading it needs to be there for a MTB. Any thoughts?
Hey Gary,
Thanks for reaching out. Legendary last name by the way funny how close ours are.
I'll be honest I'm not 100% certain if there's a difference on the MTB front v. the non MTB. Is it still an XD/XDR SRAM hub? So interesting point here, initially I thought you needed the small spacer ring but after research I found the opposite rhetoric on the subject (most people saying it's not used for 12 speed). One thing I might mention is that if you overtighten the nut a bit your flywheel will not freespin and you'll get a ghost pedal. After backing off the tension a bit on the outer nut that seemed to save the day. To date, I've not had issues without the tiny spacer ring. Neither shifting or just keeping it fixed in ERG mode. Sorry I can't be of more help on this. Let me do some external research though and see if I can find some more info for you. I might write to SRAM or KICKR and see if I can get an official response from them.
@@WaltDoesBikes thanks, my man. I’ll give that a try. I’m certain everything else is correct, so it has to be a simple solution. Much appreciated!
Installed everything same as this video except with the xd driver spacer ad I'm running an XD cassette. Running into an issue where it seems my biked thru axle is yoo short and just barely doesnt reach the threads of the frame. Anyone else have this issue?
Thx!
I have about 3mm between the inner face of the cassette & the inside edge of the freehub body. Is that how it should be?
I'd add a picture if I could see a way to add to this comment
I’m trying to picture what you’re saying and my guess is no. Mine seated all the way into position no problem. But of course I’m not 100% sure unless I compare the two directly
Hey, thanks for the good video. I just received my kickr core but the new spin cap doesn't fit into the cassette due to the inner teeth of the lock. Looks so simple on yours but here it is impossible since the cap is too large in diameter.
Something sounds not right there for sure… hm. You’re sure it’s a 12 speed cassette on a 12 speed free hub body?
@@WaltDoesBikes I managed to get the spin cap into the cassette lock this morning. For some reason on all the videos I found, it looks like it smoothly fits but mine seems to be on the outer edge of possible tolerance in diameter so I needed some pressure. Thanks for your feedback
I just noticed that you posted this 2 hrs ago. My bad, so if you either have or have not had this issue- just so you know, I’ve also tried to make micro adjustments to the derailure and it doesn’t seem to cure the issue. At very least for me
Ah, replied to your other comment before seeing this. That’s good to know and if I start having that issue and find a fix I’ll let you know what I find out. Or at least post a video on the fix.
can i use a regular xdr freehub removed from the wheel and old end nut?
Let's say I only wanted to ride in erg mode. My current Wahoo setup is for an 11 speed shimano, gravel bike I want to put on is 12 speed SRAM. Staying in erg mode would I need to still make the freehub/cassette change?
Staying in erg mode it really shouldn’t be an issue. I’m not 100% sure with a flattop chain the teeth of the cogs will run smoothly with that setup. However, shifting spacing won’t be a problem which is the primary driver to switch.
Bottom line, your bike won’t explode so realistically you can try it on an 11 speed cassette and see if it fits your preference. My only thought against it is that it could potentially wear your chain a bit quicker if something is a bit off.
I followed your tutorial to a T, but my cassette is not sitting flush against the trainer the way yours is like you can see at 8:48. With mine, there’s a small gap where you can still see the free hub body. I’ve tried taking it apart and trying again and still the same thing. I’m using a 12 speed AXS Rival cassette XG-1250. The gap is not allowing the thru axle adapter to sit out so the bike doesn’t fit. Any help would be greatly appreciated. 🙏🏼
What it initially sounds like is that the free hub body may not be completely seated into the trainer. There are small teeth on the inner part of the freehub body that have to be completely inside the trainer. Once that’s confirmed, the cassette itself needs to almost click into place. You’ll hear it pretty loud and clear when it properly drops into the free hub body. I have about 1/2” maybe between the cassette and flywheel itself but no visible free hub body in there. From what you’re describing though, my guess is that the cassette itself didn’t seat properly or you maybe didn’t screw in that lock ring all the way.
Hopefully that helps a bit!
@@WaltDoesBikes hey man, I guess third times the charm! I think the cassette wasn’t seating properly. I got my bike on and had a successful session. Thanks for the help!!
@@h31sman glad you tracked it down! Enjoy. 🤘🏼
Hi.
Im new to SRam components, i bought force axs recently. Is there a specific cassette for axs only? I am confused on what to buy. And due to the stock issues, i need cassette for my trainer because I am a shimano user before. do you think components will wear off easily if i have 12speed component attached to 11 speed cassette on my trainer? I can find 11 speed srams but not the 12speed.
Hi there, thanks for watching. You just need a 12 speed cassette. It doesn’t necessarily have to be SRAM specifically as long as your 12-speed spacing matches up. You can run an 11-speed cassette but you can’t really shift up and down the cassette. The spacing on 11-speed Shimano is different than 12-speed SRAM so your shifting would be awful and yes, you’d likely wear out components (chain, etc) much quicker.
Long story short if you stay in ERG mode forever and don’t shift… you can do it. If you shift, swap to 12-speed. There are alternatives out there to SRAM cassettes specifically though that are fine trainer cassettes.
Can you use any free hub or does it need to be one specifically made to work with the wahoo?
Just has to be the SRAM XDR free hub if that’s what you’re swapping to (SRAM 12-speed)
@@WaltDoesBikes I'm wanting to run a 10sp campy set up but having a nightmare finding a 21t sprocket to fit the '4-arm' design of the wahoo campy replacement free hub. Would be a lot easier if I could use any campy free hub!
Hey brother any xdr freehub will fit or I'll have to buy the specific wahoo freehub?
Ooo thinking about this one, I grabbed mine from the local bike shop I don’t think it has to be Wahoo specific but I don’t want to lead you astray so maybe a bit more research before you take my word for it 😬
Mine came with a 12-speed cassette. I bought the additional XDR Free hub. Can I use that cassette on my SRAM Rival setup? Or do I also need the 12-speed cassette from SRAM? Thanks in advance!
Is it a 12-speed Shimano cassette? If so, I don’t believe it’ll work. If you’re running SRAM AXS 12-speed with a flattop chain my guess is that you’ll need a SRAM 12-speed compatible cassette for decent shifting.
@@WaltDoesBikesAlready had that faint idea. Thanks for the swift reply!
So I’ll need to purchase a separate cassettes as well as the Xdr/Xd hub?
Correct. The XDR hub and SRAM cassette are separate purchased
@@WaltDoesBikespretty crazy amount of additional cost with the Kickr itself being $1500+. Thanks for the reply though!
Google this and boom my boy Dalton with the hitter. Lfg bb
Hahah so funny, glad to know it’s still ranking in the almighty Googly Woogly 🫡
Brand new kicker v6 . Added new sram cassette and adapter to match my bike and nothing but grinding ! the higher the gears the worse it got. Quit and got a refund from shop. Wasn’t going to accept erg mode only or limited gearing
I am pretty ignorant with bikes. Ok. I got a BMC with sram rival AXS. I bought an extra cassette for my kickr. So now, I need to buy and additional free hub body? To make it work?
That’s correct. SRAM cassette/groupset setup on the KICKR needs an XD/XDR free hub body to work properly (if you’re going to shift). A SRAM cassette won’t go on your standard hub that comes on the KICKR.
eu.wahoofitness.com/devices/indoor-cycling/parts-components/xdr-xd-freehub-buy
Thank you. I went to the bike shop. They were out of the XDR hub adapters. So, one is being ordered. However, I have a gen 1 kickr. That hub adapter they said is not compatible. So, I bought a new trainer. (It was time anyways to get my own brand new)
@@kidgiven hahahah oh no the slippery slope! They always getcha. Well, nonetheless you’ll love the new trainer I’m sure
@@WaltDoesBikes I took the new BMC back to the bike shop. They pulled out a brand new kickr, adapter hub, and cassette. In the tough gears (top chain ring bottom cog) it made a real bad rubbing sound. They couldn’t fix it. Was your sram rival on the kickr perfectly quiet?
I need some help. What is when the body is not sliding down( video 4:37min) in my case it seems to be fixed. Can anybody help me? It would be much appreciated ✌️
Not sure what I'm doing wrong, I've removed the nut, but the freehub body won't budge?
Did you beat on it with a hammer? Totally kidding, if you’ve ridden it already the teeth that click into place may be a little jammed up especially if it wasn’t greased fully? Is there any chance there’s rust or anything that made it’s way in there?
@@WaltDoesBikes - all good prised it off with a screwdriver.
Hi everyone, can anyone tell me if the newest Kickr ist compatible with my bike if I have a Sram XG-1250 cassette (i.e. 12-speed)? I intend to only use it in ERG mode with Zwift so wondering if it's necessary to replace the pre-installed Shimano cassette. Really hard to find any reliable info.
Hey Jessica! Thanks for popping in. I had the same issue and ultimately decided to swap it over because I didn’t want to be married to ERG mode. If I ever wanted to Zwift race or free ride it would be an issue shifting.
I’ve heard of people setting it to ERG mode and still running an 11 speed but I’d maybe be concerned about chain line or drive train efficiency because the spacing is different between 12 speed SRAM and 11 speed Shimano to the best of my knowledge.
I think the short of it is… technically, if you never shift it should be a non issue, but it’s probably not the ‘preferred’ option. Sorry I can’t be of more help!
@@WaltDoesBikes hey really appreciate the reply. Good point on the races, though erg training is my main use case so I guess I will give it a try given it seems impossible to get a new sram 1250 cassette anywhere in Germany atm
@@Jess-oz4ih you could potentially chase down a SRAM alternative like Sunrace or something but the quality is definitely lacking. Good luck!
I bought all these attachments and new cassette for my 12 speed rival. Runs horribly bad skipping gears, grinding, vibration, rubbing noises.. It's weird because on road my gears are so quiet.
Are you sure you have the correct spacing? The 1mm spacer goes unused if I remember correctly, it’s been a while since I did this. That’s likely the issue as I have no issues, really.
@@WaltDoesBikes thanks for the reply. Yes correct I didn't use the spacer. Just the xdr freehub, 12 speed SRAM cassette only. My chain is relatively new also only about 800kms on it. It's very strange but I've read online a lot of issues with SRAM rival 12 speed and the kickr core.
@@MarcraM82 ah, maybe it’s the differentiation between the Core and the whatever version the KICKR smart trainer is, hub spacing maybe? Wouldn’t really make sense, though. Sorry I can’t be of more help!
@@WaltDoesBikes yeah man thanks a lot for your reply. Unfortunately I think the only fix is for me to set up the derailers for the kickr core but I can't do that as then when I ride it on road it'll be terrible! Only solution is buy a spare bike for it I think.
I have a core. Going to set up tonight/tomorrow and I’ll see if I have the same issue
Thanks for this video! It's well produced and the explanations are clear, but I got stuck (literally) when trying to remove the freehub of my Kickr Core. Is there anything I need to do right after removing the nut? It doesn't slide right out like yours: ua-cam.com/video/zKJR2HkEYWQ/v-deo.html Thanks for any help!
Shoot, tbh I don’t know. I did not have that problem. I wonder if you need to try and jostle it back and forth? There are those teeth that latch onto the actual internals that may be hung up?
I have the same issue, have you been able to solve it?
Sorry for the delay. No I haven't :-( Still running my old bike on it in the meantime. Hope you'll get more luck on your side! @@dandeto1834
@@julienmartlet I had the same issue & had to use a screwdriver & gently pry it off.
M
Hey Michael! Anything you needed help with or just accidental comment? Thanks for dropping in 🤙🏼