Force AXS cassette with Red AXS group?

Equipment
1

He guys,

So pulled the trigger on ultimate 9.0 red axs. Little over budget so I thought will sell my old trainerbike to my bro with 10speed sram red. He sees how I am flying, want to pursue the same. Making it a good deal as its family.

However, realizing that I also need to put a 12sp cassette on my trainer and a xdr body now… Not going to change cassettes all the time. Red cassettes are quite expensive, and not trainer worthy in my opinion. Anyone know if its possible to use a force axs cassette with a red axs group? I am aware of the noise issues the cassette maybe has, but don’t see that as a problem on the trainer anyway.

Thanks in advance,

Regards,
Kenny

2

Nope, you will be fine. AXS is AXS so Force will work with Red and vice versa.

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3

No problema. Sram would be foolish not to make those compatible.

4

Indeed. Just knew the coating is different. Thought maybe the chain will give issues but guess red and force axs chains are the same except for the hollow pins.

5

I have AXS red crank/chainring and force derailleur and cassette. All works great together.

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6

Ditto

7

Jumping in here as I’m looking for some cassette clarification for a few SRAM AXS/XD/XDR/NX assumptions/questions I have so I can add more details to a video I’m working on:

  • SRAM AXS encompases Red, Force, and Eagle 12spd groups.
  • 12 Speed SRAM needs an XD/XDR driver due to the diameter of the 10 tooth cog.
  • XDR is for Road, XD MTB/Gravel.
  • XDR is XD and XDR compatible (XDR has 1.85mm longer splines). XD isn’t XDR compatible.
  • Direct drive trainers (and wheels) require an XD or XDR driver upgrade to run XD or XDR cassettes (as above, for the 10 tooth cog).
  • SRAM NX or SX are splined (Standard Shimano/SRAM freehub) cassettes and are an alternative 12 speed option that don’t require XD/XDR drive as they don’t have 10 cog, they have an 11.
  • NX/SX cassette ratios are limited to 11-50… so not an ideal solution for AXS Red/Force road bikes.
  • NX/SX cassettes would be an option for those with AXS who don’t require a full range of gears (pure ERG warriors), and who don’t want to upgrade their trainer freehub to XDR (some don’t have the option).
  • I’ll also assume trying to change gears to a 50 cog with a Red/Force group with a chain sized for a 33 wouldn’t end well.

If any SRAM experts confirm/comment on the above, that’d be awesome.

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