SRAM X-Sync 2 Eagle Direct Mount Chainring - 30 Tooth 3mm Boost Offset 12-Speed BLK Gold MFPN=RR21BG4DM5536TSHI12BLK stiffest and most durable carbon

stiffest and most durable carbon crankever created by Race Face Stainless steel wear plate guards against the damage caused by footwear friction while adding additional impact protection Redesigned pedal inserts from previous generation cranks 176mm q-factor (with pedal washers) 52mm chainline w/ 136 spindle + DM RF chainring 30mm spindle 483g (170mm + 136mm + 32t + washers/spacers)

SRAM Ultimate Piston Press evenly pushes pistons back for pad replacement and bleeding

Fitment Series design approach ensures a perfect transition from tire to wheel

Truing of 20 mm or other dimension axle wheels requires additional adaptors

An elastic waistband with a drawcord

SRAM X-Sync 2 Eagle Direct Mount Chainring - 30 Tooth 3mm Boost Offset 12-Speed BLK Gold MFPN=RR21BG4DM5536TSHI12BLK stiffest and most durable carbonSRAM X Sync 2 Eagle Direct Mount Chainring 30 Tooth 3mm Boost Offset 12 Speed Black with Gold. Intense study of chain and chainring wear patterns led to the radical tooth profile that lasts longer runs quieter and further improves chain retention. Fully CNC Aluminum ring construction Eagle technology provides an expanded optimum gear range for 1x drivetrains X SYNC 2 chainring design increases chain retention wear life and reduces friction and noise