
SHIMANO BOOST (3mm offset) Oval Hollow Narrow Wide Chainring 28-38T
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 (Closer to the frame) Chain compatibility Standard or 9/10/11/12 speed Support paying an extra $10 to customize the same silver color OVAL CHAINRING ADVANTAGES The Shimano chainring is made of a single piece of aluminum plate, CNC milled. The back is hollowed out and chamfered to ensure strength while reducing the weight of the chainring! The chainring uses an extended tooth shape, and the teeth extend far beyond the chain, so even if the chain jumps violently, it is not easy to fall off the teeth, thus preventing the chain from falling off.