Race Face Aeffect Cinch Crank Arms 175mm CK19AE137ARM175BLK New in box
Forged/CNC machined 6066 aluminum arms with updated graphics
24mm EXI spindle compatible with Race Face X-Type bottom brackets or Hollowtech II compatible bottom brackets
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 (Ring sold separately)
BB sold separately, use RF-2925 for English 68/73mm shell
