2FAST 50 PRO RACE CRANK (39.7mm x 85mm) V2 NEW JULY 2026
SKU: CR397B85M-SM-V2
$499.99
By 2FAST
Description
Works with smaller 50cc cases and is a 39.7mm stroke vs a 39.2mm stroke
Engine Displacement 49.89cc vs 49.26cc with 39.2mm crank
MINARELLI Shaft 39.7mm
- Crankshaft MINARELLI
- Stroke 39.7mm
- Connecting rod 85mm
- Axis 18mm
- Gudgeon pin 12/13/14mm
- Flywheel diameter 75mm
- Total mass 1470gr