SHIMANO BOOST (3mm offset) Oval 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   Support paying an extra $10 to customize the same silver color                    OVAL CHAINRING ADVANTAGES Multiple muscles are responsible for the balanced output More stable Give full play to the strength better and steadily It is more convenient to shake the bicycle Suitable for long distance, more effective to maintain their physical fitness