Hello, so I'm looking for a smart trainer that can be fitted with a 12 speed shimano cassette, anyone's knows of one that could do this? Hopefully with a power meter integrated as well.
Thanks

If it's a smart trainer (i.e. it has erg mode and can set resistance for you) it will definitely have a PM integrated, AND you won't need to shift, just pick a gear and let the trainer do the rest. Assuming that's your plan, an 11 speed cassette works just fine with a 12s drivetrain. I use my 12s XTR-equipped bike with a 105 11s cassette on my Kickr Core. Of course shifting is not precisely indexed, so you just find a gear around the middle of the cassette where the chain runs quietly and smoothly, and off you go.

 

^^^ yes. If using erg mode and not shifting, that def works. And you don't really need to shift, however, there are times I find it useful to shift in erg mode, basically when large cadence changes are called for. For example, if I'm pedaling at 100 rpm and need to go to 80, rather than wait for the trainer's flywheel to slow, I'll upshift a few gears. Likewise going the opposite direction.

The big cog on an mtb cassette is dished inward, unlike the cogs on road cassettes. This can make it get close to or hit the frame of the trainer. I have a Saris Hammer (H1/2/3) and the big cog will just clear the trainer housing, but there's not enough clearance to be able to shift into it. I never need to anyway, but that is a limitation. I use an aftermarket cassette that fits a normal 11 speed road freehub (with a 1.85 mm spacer).

 

I don't know of any microspline freehubs for turbo trainers as yet. The work around is to use a SRAM 12 speed cassette instead of the Shimano 12 speed cassette.

You can fit a SRAM XD driver and use a SRAM Eagle 12 speed 10-50 cassette on the Wahoo Kickr and Tacx Neo. That will work with a 12 speed Shimano drivetrain.

You can also get a SRAM NX Eagle 11-50 12 speed cassette,which fits on a standard Shimano style splined freehub, and use that:

https://forum.trainerroad.com/t/wahoo-kickr-12-speed-confirmation/6102

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I don't know of any microspline freehubs for turbo trainers as yet. The work around is to use a SRAM 12 speed cassette instead of the Shimano 12 speed cassette.

You can fit a SRAM XD driver and use a SRAM Eagle 12 speed 10-50 cassette on the Wahoo Kickr and Tacx Neo. That will work with a 12 speed Shimano drivetrain.

You can also get a SRAM NX Eagle 11-50 12 speed cassette,which fits on a standard Shimano style splined freehub, and use that:

https://forum.trainerroad.com/t/wahoo-kickr-12-speed-confirmation/6102

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I can run my Shimano 12-speed drivetrain using the stock Wahoo driver and an NX Eagle 12-speed cassette? Isn't the stock driver only compatible up to 11-speed? Just trying to be sure. Also, have there been any changes with the newest Kickr versions, if you or anyone else happen to know? Thanks!

 

True, you can just pick a gear that works and stay in ERG mode but I think it's useful to train both high inertia and a tall gear (like putting power down on a flat section) and also low inertia low cadence (like grinding up a steep hill) so I like being able to shift.

 

The Garmin TACX NEO 2T is supposed to be 12 speed compatible, only to 40T.

They have different hub adapters for the range of cassettes.
It has been on the top of my list for a smart trainer, I have not been able to justify pulling the trigger on one yet.

 

You can get a SRAM XD driver for the Tacx Neo 2T which lets you fit a SRAM 12 speed MTB cassette: Part number T2875.76 SRAM XD-R (XD cassettes fit on the XD-R bodies with a spacer)

https://tacx.com/product/bodies-direct-drive-trainers/

On my Tacx Neo 2T I've actually used a Shimano Ultegra 11-32 11 speed road cassette to go with the Shimano Deore XT M8000 2x11 drivetrain. It gives tighter ratios which I much prefer for turbo trainer use as the gaps in gearing aren't as big as on the wide range MTB cassettes. It's easier to hold a given intensity when using the gears and not in erg mode.

If you look at the Wahoo Kickr pictures in the link above there's far more clearance all round on that turbo trainer when used with a mountain bike.

The main thing to bear in mind with a Tacx Neo 2T and a mountain bike (also many road bikes on a Tacx Neo! ) is that the non drive side clearance is limited so frame compatibility can be a problem. The shape of the plastic body of the Tacx Neo 2T hasn't changed from the original Tacx Neo 1. There's hardly any room between the turbo trainer plastic side and the bike's rear disk brake caliper. You have to either remove the caliper completely or undo the caliper bolts and push it out as wide as possible. On my 2012 Specialized Epic the brain that sits by the rear axle had to be unfastened from the frame also.

This picture of my 2012 Specialized Epic on the Tacx Neo 2T shows the clearances. The XT M8000 brake caliper is loosened off but still lightly touches the plastic of the turbo trainer. This bike has a 142x12mm rear end, Boost 148x12mm frames might give a little more width clearance for the brake caliper.

To get my 2012 Specialized Epic bike back to being rideable outdoors would mean redoing the rear brake alignment, plus on my bike reattaching the brain and reindexing the gears. That's a lot of hassle if you intend on using one bike for both indoor and outdoor rides. The Tacx Neo 2T really needs a dedicated bike that you can leave on there permanently, which is what I do.

The other thing to bear in mind with a mountain bike is that the built in cadence sensor of the Tacx Neo 2T is intended for a road frame with shorter chainstays. You'd have to extend the crank a lot to get it to register using a mountain bike. I use a Wahoo cadence sensor instead.

To ride the Tacx Neo 2T is an improvement over my previous Tacx Neo 1. It's not a night and day improvement but it does have stronger magnets and you can really feel that, particularly when doing virtual rides on steep uphill gradients. Being able to use the bike's own thru axle, rather than an adapter, is an improvement too as it is more secure and doesn't damage the thru axle threads in the frame drop out like the old Tacx adapter could.

 

Thanks!

I'll be using it with a 2018 SC Bronson, which is a 148x12 boost I believe. We will see if I can talk myself into it. It would be nice to have to hop on when the weather sucks.

Sent from my XT1650 using Tapatalk

 

Saris is having a special on their Hammer trainers, $600. This is what I have and its very solid with arguably the best ERG mode response. It's identical to the new H3 version except for using a toothed belt rather than the new smooth belt. It whines a little but really isn't bad IMO. As I mentioned in my previous post, you can't shift into the largest cog if running 12 speed.

 

Can also run a Sunrace 12sp cassette...that’s probably what I’m going to do. Cheap and easy and works well.

 

Can also run a Sunrace 12sp cassette...that's probably what I'm going to do. Cheap and easy and works well.

If you got this route - Bikesmith's currently has all their Sunrace at 40% off. No need to spring for a gucci cassette on a trainer! https://www.thebikesmiths.com/collections/sunrace

 

When it comes to turbo trainers one thing to consider is that if you have a quiet turbo trainer the drivetrain noise becomes very noticeable. I think it's worth having a reasonable quality cassette and chain on the turbo trainer for that reason.

If you read some of the Dcrainmaker turbo trainer reviews for example he uses Shimano Ultegra cassettes instead of the cheaper Shimano 105 cassettes because he finds them quieter. The same applies with the mountain bike cassettes to some extent. If you have a drivetrain that is a little bit out on the indexing and noisy it gets really irritating as you can hear it all the time on the turbo trainer.

 

I find this a little comical since I have Pandora Blasting and the Kicker Headwind creating 30MPH wind noise on my earlobes.

DC Review vs reality

 

In erg mode, I use a cog near the center of cassette that aligns well with the ring so there's hardly any drivetrain noise. A fresh chain and cassette are quietest. Shifting, however, can seem pretty loud compared to what it sounds like riding outside no matter what drivetrain you're using. I'm fortunate that I can almost always time my workouts so that I'm not disturbing anybody.

In many apartments and townhouses, vibration and noise conducted through the floor and walls can certainly be a problem.

 

You're safest to stick with something with the same size large cog. B tension and chain length are crucial on Eagle for shifting to work well. If you use a different size cassette you should adjust it, which you don't want to do everytime you put your bike on and off the trainer. I'm pretty sure Sunrace make a 12 speed 11-50 cassette too.

 

Thank you! I looked into it and Sunrace does make several 11-50's and 11-51's (might be previous vs new generation). The 11 tooth cog is no problem for the Shimano 12-speed drivetrain? The NX Eagle and Sunrace HG cassettes are all 11-50 or 11-51. Shimano 12-speed is 10-51.

https://www.universalcycles.com/shopping/product_details.php?id=97905

https://www.universalcycles.com/shopping/product_details.php?id=102198

https://www.universalcycles.com/shopping/product_details.php?id=95718

https://www.universalcycles.com/shopping/product_details.php?id=93441

 

I used to be a 1speed erg mode guy for years on my kickr (i think i was 44x11tooth) but when i starting racing more on RGT and Zwift they automatically kick you out of ERG (only found this out recently..duh) and you really do need to shift.

That being said, using multiple bikes on my kickr i've found you can get away with not the whole cluster working/sounding right. On mine right now i think i have a 10sp cassette on a 12 speed shifter/bike and it works but i have 2 cogs in the middle that are loud/clicky/justdontwork and i just deal with it and go higher/lower in race scenarios. For cadence drills (which peeps here have mentioned) you generally just need the top end of the cassette to work.

You are alone in a dark, damp, cold basement/garage...it doesn't have to be perfect/silent, it just needs to work reasonably well. There is no alpha rider/pack/type A guy, judging your setup and quietness of your drivetrain...just you(and maybe some vermin)..deal with it and ride-on

 

I used to be a 1speed erg mode guy for years on my kickr (i think i was 44x11tooth) but when i starting racing more on RGT and Zwift they automatically kick you out of ERG (only found this out recently..duh) and you really do need to shift.

I use pretty much the same gears on Zwift races as I would outdoors so I don't think mtb gearing would work out so well for virtual races. Next time I get a new road bike I think I'll just leave my old one permanently attached to the trainer, that would be ideal.

 

Do you all feel Zwift is even worth it for a guy running a 38t 1x on a hardtail? Not sure if there are lower level races where someone maxing out at maybe 30-33 mph would even enjoy themselves, haha. Love the idea of the trainer, but still on the fence about Zwift. It looks super fun, though!

 

Do you all feel Zwift is even worth it for a guy running a 38t 1x on a hardtail? Not sure if there are lower level races where someone maxing out at maybe 30-33 mph would even enjoy themselves, haha. Love the idea of the trainer, but still on the fence about Swift. It looks super fun, though!

I haven't really paid much attention but I'm pretty sure I spend most of my time between 80-90 gear inches (52/15-17-ish) during races so I suppose it would be possible to compete with your gearing (38/11 is ~92 gear inches). Not ideal for sure but possible I suppose, especially in D category.

 

Hey Friends! I read through all this but I'm still unclear on a situation I'm in. I just bought a Wahoo Kickr Core that came with the stock 11sp casette. I want to run my Scott Scale 930 MTB on it, which currently has the Shimano Deore CS-M6100-12 / 10-51 T gear train.

Can I run the stock 11 speed cassette?

If not, can I install a Shimano micro spline cassette 10-51 tooth? Will that fit or do I need some sort of adapter to retro-fit it?

Thanks!