Anyone using a road cassette on trainer for SRAM eagle MTB?

Equipment
1

Sorry if this is a crap question, but I can’t find an answer anywhere and I figure if it’s possible someone here would be doing it.

I want to put my MTB on a tacx neo 2, but for zwifting I think running an eagle 11-50 cassette would suck. Is it possible to use a sram red road cassette? I’ve found lots of info about people going the other way (road sifters, eagle derailleur and cassette) for their gravel bikes, but nothing in this direction.

Also, any general feedback on how a mountain bike set up fairs for zwift racing? Am I going to be too spun out given the gearing? Or do you just turn up the resistance so it’s more watts and it doesnt matter?

Thanks a bunch, cheers

2

Eagle cassette has its own unique chain which is not designed for road cassettes IIRC.

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3

I’ve used my 10-33 cassette on my Kickr with my MTB. No issues at all.

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4

My mountain bike is my primary trainer bike. The bike is SRAM Eagle AXS. The trainer is a Wahoo Kickr Core with an 11 speed Shimano road cassette. They interact just fine other than a few gears being hard to shift in/out of. Running the trainer in ERG mode alleviates the need to shift and it works just fine.

I would imagine that shifting with a 12s red cassette won’t be perfect but will work.

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5

Do you have Eagle, or Eagle AXS?

6

Eagle 12 Speed

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7

@Hilbert just curious what you ended up doing as i’m in the same scenario now and don’t really want to buy another cassette for the trainer

8

Ride ergo, chain out the chain and run a single speed steel cog. Save yourself some coinage

9

I use a 11-50 11 speed Shimano hg cassette on the trainer with my 12 speed mtb. Works great.

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10

I use a Rival 12speed AXS cassette with an Eagle chain/derailleur on my gravel bike. No issues.

Its the other way around (12s flattop road chain on eagle cassette) that is the issue.

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11

Also for Zwift racing, what works best for 1x setups is to use TrainerRoad in Freeride mode and then to change it to “standard mode” and then up the resistance to basically be a big ring.

12

thanks! this is probably what i’m going to do as i already have a 12sp axs cassette lying around.