Wolf Tooth Components 34t 102bcd Drop-Stop Chainring for Shimano XTR M960 cranks Made from 7075 Aluminum for long life Made from 7075 Aluminum for long life,Optimized for use with 10, 11, and 12 speed chains or 10 speed chain Features Wolf Tooth's Drop-Stop tooth design for maximum chain retention Not compatible with 9 speed chains 50mm chainline