Let me preface this question by saying that I’m not even sure I have the technical proficiency to ask this question correctly. With that being said … I know there are a lot of mechanically inclined MTBers on this board, so hoping someone here is able to give me a concise answer … I have a 2019 BMC…

[image] batwood14: It is my understanding that Shimano hubs (like the one on my current bike) are not able to be adapted to fit an XD driver … which means, I think, that if I did upgrade to X01 Eagle with new wheels with an XD driver hub, my old/stock wheels would essentially be useless as a bac…

I use a Shimano chain and cassette (XTR) with AXS Eagle X01 and it shifts like a dream. No need to change the hub body.

You’d need new wheels, but IMHO the Alex rims that came with the bike aren’t that great. Alex rims are OEM wheels. They are very sturdy in my experience (my current mountain bike has a pair), but they are heavy. Price, weight, performance — pick two. With Alex rims IMHO you are paying in weight. If…

[image] ackvor: I use a Shimano chain and cassette (XTR) with AXS Eagle X01 and it shifts like a dream. No need to change the hub body. 12 speed to 12 speed works. OP has 11 speed.

Yes, and the OP would need a new wheelset, just with a microspline hub rather than an XD driver. I don’t think that makes sense.

The first answer is correct. But to simplify it, buy this SRAM Unisex’s Cassette Pg-1230 11-50 12 Speed Nx Eagle, Black, 12spd and put it on your backup wheels. You’ll lose that 10 tooth cog for an 11, but the rest should work.

To run anything with a 10t sprocket, you need an XD driver. However you can have 12 speed without one, but you need a cassette that starts with 11t, not 10t. Some hubs can be upgraded to an XD driver, but I wouldn’t think yours can, so you would need new wheels. You should be able to have two 12-s…

MTB groupset, wheel question(s) … SRAM, Shimano, etc

Equipment

splash June 21, 2021, 10:05pm 13

Cool, I wasn’t 100% that it could so that, and didn’t want to say anything wrong.

Basically you need a hub with a smaller diameter, because you can’t fit a 10t sprocket on a normal hub.

1 Like

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MTB groupset, wheel question(s) … SRAM, Shimano, etc

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