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TBParts - 51mm Stroker crank for Honda 50/70
Z50 XR/CRF50 & 70 12v CDI Motors

Vital Information
Part No TBW0319
Stock Level 3 Left

TB 51mm Stroker crank for Honda 50/70

Can be used directly with all 12 volt engines like XR, and CRF with proper piston

Also can be used in older 6 volt engines when combined with a newer Honda or China ignition and piston

Measures 70.5 mm from gear to end of crank

Rod marking 


  • 1988 to present Z50 XR50 CRF50 XR70 CRF70 

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