SRAM RED Crank Arm Assembly - 160mm 12-Speed 8-Bolt Direct Mount DUB Spindle Interface Natural Carbon E1 CheckoutSpec= Fat Bike 4 The Drop-Stop® tooth design is

The Drop-Stop® tooth design is the best performing and longest lasting wide/narrow chainrings on the market

Sharp narrow tooth profile and rounded chamfer edges help manage a deflected chain

Multiple attachment options for added versatility

}Pirelli Scorpion SmarTube Tube - 29 x 1

Cogs are optimized for use with SOLO carrier system only

SRAM RED Crank Arm Assembly - 160mm 12-Speed 8-Bolt Direct Mount DUB Spindle Interface Natural Carbon E1 CheckoutSpec= Fat Bike 4 The Drop-Stop® tooth design isSRAMs 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 160mm