The Shimano Deore XT SM-CRM85 chainring is designed for use with Shimano’s M8100 and M8130 1x cranksets.
- Special MTB gear tooth profile with Dynamic Chain Engagement+ improves chain engagement and retention
- Features SHIMANO DYNAMIC CHAIN ENGAGEMENT+ technology, which features special gear teeth profiles that deliver exceptional chain engagement and chain retention
- Special MTB gear teeth profile improves chain engagement and retention. Exchangeable single/double chainring.
- Superior chain retention. Rider tunable.
- Gear combination: 28T, 30T, 32T, 34T, 36T











Francisco Buenaventura –
I had the 32 teeth chainring, since I do very steep and hard climbs, I decided to install the 30, the results were awesome. Now I can climb a lot easier and became more efficient regarding to speed on the climb. I simply have more cadences than before because I can switch or play with more sprockets you either go easier or faster on the climbs. My combination: 30 on front and 51 on the back (New Shimano XT group set, 12 speed)… Awesome group, it’s really blowing the competition!!!
kerry simonds –
I liked very much Iβm upgrading the crank systems to Xt on a trek mountain bike
Jason –
easy to install
fast-ticket –
ive tried many brands over the years. Shimano stuff just works and is always dependable.
SneakyRay –
Perfect Fit
Carlos Asmus –
RecibΓ el Producto que Compre…. Excelente !!!
GIANFRANCO MOLINA –
I bent my chainring in a bizarre way. Needed to get a replacement as soon as possible and it was available via Amazon. Shipping was fast and the product was well protected in the package. The sellerβs description was accurate and I received it on time. The quality of the chainring is great, easy to install with the appropriate tools.Needless to say I was on the bike in no time.