SRAM Rival 1x XPLR Wide Crank Arm Assembly - 175mm 12/13-Speed 8-Bolt Direct Mount DUB Spindle BLK E1 CheckoutSpec= Base Model Weight: Lightweight

Weight: Lightweight

The S2 is more appropriate for universal and harder track

and to protect the base from ice abrasion

and fast ski set that is easy to ski on

3/4 zipper at the side

SRAM Rival 1x XPLR Wide Crank Arm Assembly - 175mm 12/13-Speed 8-Bolt Direct Mount DUB Spindle BLK E1 CheckoutSpec= Base Model Weight: LightweightSRAM Rival 1x XPLR Wide Crank Arm Assembly 175mm 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