Cold forged aluminum spider/crank with integrated MegaExo BB. MegaExo oversize cartridge bearings, 24mm splined CrMo spindle. Choose compact 110mm 34/50t or standard 130mm 39/53t CNC 7075 9/10sp Shimano compatible rings with ramps/pins. Also available as a triple ring crank with 30/39/52t. Cups are English threaded, Italian cups sold separately: BTI #FS-0071. AL7075 Torx T-30 alloy chainring bolts.
Cold forged aluminum crank arms
AL7075 Torx T-30 alloy chainring bolts
Left arm uses a pinch bolt
MegaExo: an integrated crank/BB system with oversized 24mm O.D. splined CroMoly BB axle, oversized external cartridge bearings and alloy bearing, weights include BB