Sram Unisex - Adult XO1 Eagle AXS Rocker Driveline, Lunar Grey, One Size

with a huge spectrum of cassette cog diameters, you'd think this affords a huge range of ratios. the catch is, the system can't be used with multiple front chainrings, which restricts the overall range enuf that it's not a good answer to my needs. i get a much wider range with a triple front and an 11-40 rear. sorry, not ready for prime time yet. i had to return it. (plus, the only chains that work with 12-speed do NOT have a re-useable master link. since i dismount chain to wash & lube about every 300 mi, this is yet another deal-breaker)

I purchased this for my husband for Christmas. He had it professionally installed by our local bike shop to make sure it was done right. He has loved having it.

Been on the fence for about a year and finally pulled the trigger. Wish I hadn't waited so long. Nice quick-crisp, shifts. Don't hesitate- do it!

Amazing