offers precise performance and excellent chain retention even without the use of a chain guide

Additional Allen Pin kit included with purchase

Bearings: They contain Industrial sealed bearings with IGUS bushings

AN14A - CrMo

Liner Included: These do not include a liner

Shimano SLX SM-CRM75 Shimano Direct Mount Chainring - Shimano Direct Mount - Round - Black - Grey - 30T PDP|Option offers precise performance and excellentThe SLX SM CRM75 chain ring uses the same direct mount system as XTR and also features Dynamic Chain Engagement. With a narrow wide tooth profile, it provides excellent chain retention and less chain vibration even on bumpy trails. Who's this item for: Designed for all riders using Shimano 12 speed direct mount cranks and Shimano 12 speed chains. Number of teeth: It is available in 30T 34T options. Mounting style: Mounts using Shimano's Direct mount