The Premium 1948, 3-piece cranks feature seamless 4130 heat-treated Cr-Mo arms with wrap around pedal gussets for increase strength and durability. These cranks use the classic 19mm, 48-spline, heat-treated hollow Cr-Mo spindle and flush mount bolts.
Seamless 4130 heat-treated Cr-Mo tubing, with wrap around pedal gusset.
Heat-treated hollow Cr-Mo 19mm, 48-spline spindle.
Right and left side drive compatible.
9/16" pedal boss.