No Sprocket Boss version of Profiles race cranks for that cleaner look. for use with their Spline drive sprocket only. Profile have been the premiere brand for 3-peice cranks for the last 15 years or more. These cranks are made in the USA. The arms are made from 4130 chromoly & the spindle is a heat treated gun drilled hollow 4130, 48spine spindle. Still the best cranks around & they now come with the flush bolt upgrade & hollow spindle as standard. Titanium Spindle upgrade available at Checkout! Once at checout you will be prompted to choose a Titanium Spindle if required. section Product Specs Crank Type: 3pc Spindle Diameter: 19mm
Includes:: BB: No Weight: 786g / 27.7oz