Sugino Grand Mighty NJS crank arms

Grand Mighty crank arms feature super hard-forged Duralumin alloy construction and are even stronger than Sugino 75s due to being passed through a uuique forging process an astounding 26 times. Plus, they're absolutely beautiful with a finish that resists corrosion and oxidization like no other. Anodized with a superb matte champagne gold color w/ highly polished top side of each crank arm. Requires a 109-111mm ISO square taper bottom bracket (sold separately). Specifications • length: 165, 167.5, 170, 172.5mm • 144mm bcd • Q factor: 139mm • NJS certified & stamped • chainring bolts included