SHIMANO BOOST (3mm offset) Oval /Round Narrow Wide Chainring

Model 28T or 30T or 32T or 34T or 36T or 38T Colour Black  Made from 7075-T651 Aluminum Alloy Surface coating Anodizing Made with CNC milling Chainring shape Oval Compatible cranksets Shimano -Direct Mount (XTR M9100/9120/9125/9130、XT M8100/8120/8130、SLX M7100/7120/7130、Deore M6100/6120/6130、MT900、MT610) Weight, grams  54 (28T), 55 (30T), 63 (32T), 69 (34T), 74 (36T)，78 (38T), Offset, mm 3mm Chain compatibility Standard or 9/10/11/12 speed   Bicycle shop or dealer contact customer service           PASS QUEST NARROW WIDE CHAINRING Our tooth height achieved 8.5 mm, Increased tooth height improves chain retention  Manufactured using 7075-T651 highly durable aluminum alloy The chamfering design can reduce the weight of the gear plate and make the gear plate more beautiful