SRAM RED Crank Arm Assembly - 150mm 12-Speed 8-Bolt Direct Mount DUB Spindle Interface Natural Carbon E1 MFPN=RR21BG4DM5234TSHI12BLK Sold as bulk pack of

Sold as bulk pack of 10 Labeled Size 700 x 38-42 Size 700 X 38-42Mm

Double Joint System: double secure pinned and sleeved non-welded joint

The longest distance lowest profile widest cutaway Butterfly with something extra: Poron XRD

Duomatic Kick Shift 2 speed hub

Provides maximum fluid life and braking performance

SRAM RED Crank Arm Assembly - 150mm 12-Speed 8-Bolt Direct Mount DUB Spindle Interface Natural Carbon E1 MFPN=RR21BG4DM5234TSHI12BLK Sold as bulk pack ofSRAM's lightest and stiffest crank arms Compatible with 8 bolt spiders, chainrings, and powermeters SRAM Model ID: FC RED ASSY E1 TECH SPECS BCD Direct Mount SRAM 8 Bolt Crank Arm Length 150mm