SRAM Rival Crank Arm Assembly - 170mm 12/13-Speed 8-Bolt Direct Mount DUB Spindle BLK E1 Brand-Sunrace These IS headsets are for

These IS headsets are for frames with molded-in internal bearing cups

Long toothy side knobs ensure your favorite gravel descent won’t unravel in the final corner

Internal Molded Heel Cap

foam rings

FF Bar Red -4C to -10C 14F to 25F For fine to coarse and wet snow

SRAM Rival Crank Arm Assembly - 170mm 12/13-Speed 8-Bolt Direct Mount DUB Spindle BLK E1 Brand-Sunrace These IS headsets are forSRAM 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