Aluminum

Vintage Sugino Crank Arm RIGHT 170mm Square Taper 94 BCD MTB Bike Impel Alloy Vintage Sugino right crank arm with integrated spider for 5-bolt chainrings. Crank length stamped 170 on the arm. Square taper bottom bracket interface with threaded pedal eye at the end of the arm. Five-arm spider with 5 threaded chainring mounting holes on 94 mm BCD, shown on the BCD gauge. Forging marks include MI near the pedal eye and A1 56 on the backside of the arm. Polished silver aluminum construction for use on vintage bike drivetrains. Weight: 250 g as shown on the digital scale in the photos. NOS with storage wear. Sugino right crank arm with integrated 94 BCD spider.