SRAM Rival Crank Arm Assembly - 172.5mm 12/13-Speed 8-Bolt Direct Mount DUB Spindle BLK E1 Model=Eagle 70/90 Rear Derailleur Cover Kits Tapered end to fit child’s

Tapered end to fit child’s hand

Use gold thread ring for 30mm cranks

Weight: 28g per pair

Its ventilated lens along with adjustable nose pieces keeps you fog free and focused

Shifter: SRAM POD Ultimate Bridge MMX

SRAM Rival Crank Arm Assembly - 172.5mm 12/13-Speed 8-Bolt Direct Mount DUB Spindle BLK E1 Model=Eagle 70/90 Rear Derailleur Cover Kits Tapered end to fit child’sSRAM Rival Crank Arm Assembly 172. 5mm 12 13 Speed 8 Bolt Direct Mount DUB Spindle Black E1. SRAM has taken aluminum to another level. Careful engineering has resulted in crankarms that optimize stiffness to weight ratio with material only where its needed8 bolt interface compatible with power and non power AXS spiders and integrated chainrings (Chainring and spider sold separately) DUB bottom bracket adds durability and simplicity (Bottom bracket