The GTcro-mo crank classic is back with the same arm shape, like the old Profile madeGT cranks, a modern 19mm x 48 spline hollow chromoly spindle, and flush mount spindle hardware Arm: 4130 Chromoly Arms, 175mm length.

Spindle: 19mm Hollow Chromoly Spindle

Splines: 48 Drive: Left & Right

Weight: 28.9 oz. (without BB)

GT stamp on crank arm

Requires 9//16″ pedals

Complete with Sealed American Bottom Bracket (to fit Old School frames with the large BB shell) in your choice of Black, Blue, Gold, Silver or Red. Will also fit modern Mid BB frames, just knock the bearing out of the alloy cup.