Our great value 4130 CrMo Featuring an extra strong 3-piece design, the Progression BMX Cranks have a sturdy 19mm CrMo spindle and include all necessary fitting hardware and will work with any 19mm Mid, Spanish or USA Sealed bearing bottom brackets.

Crank Arm Length 175mm

Spindle Diameter 19mm

Driveside: RHD only

Please note: Please use extra care when screwing in the pedals. The left hand crank arms use a left handed thread, therefore to fit the left pedal you need to screw them left to tighten them in.

The right hand arm uses a right handed thread as normal so turn right to tighten.