SRAM RED Crank Arm Assembly - 170mm 12-Speed 8-Bolt Direct Mount DUB Spindle Interface Natural Carbon E1 SizeCassette Body/Freehub-26x1-3/8 Dome Diameter: 33mm (1

Dome Diameter: 33mm (1

Origin8 Bolt high profile T700 UD carbon tubeless ready clincher with 255ºC high TG epoxy resin and 3K braking surface

Bearing Grade Sealed cartridge Crown Race Diameter 40mm Lower Cup 62mm Headset Type ZeroStack Upper Cup 44mm Material Aluminum Primary Color Black S

Reversible Presta/Schrader head w/ mud guard

SRAM RED Crank Arm Assembly - 170mm 12-Speed 8-Bolt Direct Mount DUB Spindle Interface Natural Carbon E1 SizeCassette Body/Freehub-26x1-3/8 Dome Diameter: 33mm (1When SRAM found ways to make their lightest and stiffest crank even lighter they went for it. A new optimized layup drops 29g from the hollow carbon arms. Plus they're offering more crankarm lengths than ever before to ensure this crank works for you. Carbon crank arms are 29g lighter than previous generation 8 bolt interface compatible with power and non power AXS spiders and integrated chainrings (Chainrings sold separately) Rings Sold Separately