RACE FACE Boost (3mm offset) Round Narrow Wide Chainring

Model 28T or 30T or 32T or 34T or 36T or 38T  Colour Fade color Made from 7075-T651 Aluminum Alloy Surface coating Anodizing Made with CNC milling Chainring shape Round Compatible cranksets RACEFACE direct mount Weight, grams 48g (28T),50g (30T), 59g (32T), 64g (34T), 70g (36T)，73g (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 beautifulV