SRAM Rival Crank Arm Assembly - 170mm 12/13-Speed 8-Bolt Direct Mount DUB Spindle BLK E1 Rotor Type-Two Piece } Thick and soft polyurethane

} Thick and soft polyurethane based tape provides vibration damping and comfort

Swix PS Polar is a non-fluorinated iron-in wax for extremely cold conditions

and greatly improves glide in both downhills and in double poling

Clearance: 26mm

10-speed Shimano mountain derailleurs may be used with only a slight decrease in shifting performance

SRAM Rival Crank Arm Assembly - 170mm 12/13-Speed 8-Bolt Direct Mount DUB Spindle BLK E1 Rotor Type-Two Piece } Thick and soft polyurethaneSRAM Rival Crank Arm Assembly 170mm 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 sold