Profile have been the premiere brand for 3-piece cranks for the last 15 years or more, it's easy to see why with the Profile Race Cranks. Hand made in the USA from heat-treated and swaged 4130 chromoly for the arms while the spindle is heat-treated, gun drilled hollow with a 48-spline. Please note: a Titanium Spindle upgrade is available at checkout, once there you'll be prompted to choose the Titanium upgrade if required. ###section### Product Specs Crank Type: 3-Piece Drive Type: Bolt Drive Spindle Diameter: 19mm Drive Side: Right Side Drive Includes BB Bearings: No Weight: 807g (28.5oz) ###shogun-image-section### Colour: Chrome, Black; Size: 165mm, 170mm, 175mm, 145mm, 180mm, 160mm