Crankshaft – YX 150 & YX 160

This genuine YX crankshaft kit is designed for YX 150cc and YX 160cc engines, offering a direct replacement for YX160 and a +4mm stroke upgrade for YX150, enhancing performance and reliability.

Specifications:

✅ Compatible Engine Codes: 1P60FMJ & 1P60FMK
✅ Stroke: 57mm
✅ Conrod Total Length: 123mm
✅ Gudgeon Pin Hole: 13mm
✅ Crankcase Bearing Outer Diameter: 56mm / 56mm
✅ Crank Outer Diameter: 97mm
✅ Crankshaft Total Length: 215mm
✅ Flywheel Shaft Diameter: 19mm / 16mm
✅ Clutch Shaft Teeth: 19
✅ Timing Gear Teeth: 16
✅ Flywheel Nut: M10
✅ Clutch Nut: M14

Fitment:

• YX 150 (1P60FMJ) – +4mm upgrade over standard 53mm stroke
• YX 160 (1P60FMK) – Standard fitment

⚠ Note: Does not fit YX150-5 with a Honda-type head or Z155 engines.