The Grand Mighty is the only choice for track professionals. This is the crankset the Keirin racers' ride and trust. Ultra stiff Sugino Super Duralumin Alloy, Champagne anodizing and a bit more finish machining makes this a superb track crankset. NJS Naturally.
Sugino recommends using a Sugino75 or 75 Superlap BB
Spindle Interface Type: Square Taper ISO
Spindle Length: 109 mm
Chainring BCD: 144 mm
Bolt Pattern: 5-Bolt
Crank/FD Type: Single Ring
Chain Compatibility: 1/2" x 1/8"
Pedal Spindle Thread: 9/16"
Color: Champagne
Made in Japan
Includes Sugino Chainring Bolt Set