SRAM RED Crank Arm Assembly - 150mm 12-Speed 8-Bolt Direct Mount DUB Spindle Interface Natural Carbon E1 MFPN=RR21BG4DM5234TSHI12BLK Double Joint System: double secure

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

Clamp Style Std Rails Color Black Defined Color Black Gender/Age Unisex Length 280 Material Synthetic Rail Material Chromoly Saddle Cut Out No Weight 305 Width 135

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

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

The mineral oil part includes a TPX syringe for easier handling beside everything for bleeding all Shimano

SRAM RED Crank Arm Assembly - 150mm 12-Speed 8-Bolt Direct Mount DUB Spindle Interface Natural Carbon E1 MFPN=RR21BG4DM5234TSHI12BLK Double Joint System: double secureSRAM'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