SRAM RED Crank Arm Assembly - 172.5mm 12-Speed 8-Bolt Direct Mount DUB Spindle Interface Natural Carbon E1 81mm Also includes the following hex

Also includes the following hex bits 3

5" ISO Width (mm) 66 Labeled Size 27

Castled bottom-out bumper reducing harsh bottom-out allowing you to tune the air spring to maximize grip comfort and control

A single chainring with a wide-range cassette is a wonderfully clean way to tackle so many disciplines and SRAM is a 1x leader

SRAM RED Crank Arm Assembly - 172.5mm 12-Speed 8-Bolt Direct Mount DUB Spindle Interface Natural Carbon E1 81mm Also includes the following hexSRAMs 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 172. 5mm