Race Face Aeffect-R Cranks CK20AER137ARM165BLK

- Rally-rated crankset brings Enduro rated strength at an XC weight \n- Forged 7050 AL construction optimizes stiffness without added weight\n- Boost compatible 24mm EXI spindle\n- Proprietary Cinch system removable spider can convert between existing chainring standards and Direct Mount spiderless rings, and even remain flexible to future developments\n- Choose a spider or use a Race Face Direct Mount Narrow Wide ring (sold separately)\n- *BB sold separately, use RF-2925 for English 68/73mm shell\n- 632g (32T direct mount alloy, w/o BB)