RACE FACE Aeffect Crank Arms (No BB), 165mm (CK19AE137ARM165BLK)

Forged/CNC machined 6066 aluminum arms with updated graphics; Cinch system 24mm spindle, offering the same modular design as Cinch 30mm cranks, meaning a wider 24mm spindle can swapped out later for FatBike use; Proprietary Cinch system removable spider can convert between existing chainring standards and Direct Mount spiderless rings, and even remain flexible to future developments; Choose a spider or use a Race Face Direct Mount Narrow Wide ring (sold separately); BB sold separately, use RF-2925 for English 68/73mm shell