CRANKSHAFT BOTTOM KIT 05-20 YZ125, WISECO WPC163 YAMAHA MX
Wiseco Crankshaft Bottom Kit WPC163 for Yamaha YZ125 2005-2020. Precision-trued to OEM specifications and factory assembled. Shot-peening eliminates residual stresses and smoothly blends rod forging surfaces. Features a corrosion-resistant surface treatment. Crank pin bearing radial running clearance is optimized for maximum performance. Precision honing ensures an ultra-round bearing surface. Engineered oiling slots maximize rod strength and bearing life. Double-drilled small ends provide extra lubrication and cooling for the piston pin, reducing top-end distortion from thermal transfer. Silver-coated bronze phosphor thrust washers with a dimpled design increase oil retention and reduce friction. Crank pin bearings are manufactured with high-quality hot-rolled steel, case hardened to 58-62 RC. Caged needle roller bearings provide the highest possible RPM. Includes: 1 Crankshaft with connecting rod installed, 2 22 x 56 x 16mm Bearings, and 1 Bottom End gasket set with 10 seals.
- SKU
- 56-240.WI
- Brand
- Wiseco
- Availability
- Out of Stock
FULL DESCRIPTION
Wiseco Crankshaft Bottom End Kit for Yamaha YZ125
This Wiseco Crankshaft Bottom End Kit is engineered for optimal performance and durability. Precision-trued to OEM specifications, this kit provides a high-quality replacement for your Yamaha YZ125. The components are treated to enhance longevity and ensure smooth operation.
Key Features:
- Precision-trued to OEM specifications and factory assembled.
- Shot-peening eliminates residual stresses and smoothly blends rod forging surfaces.
- Corrosion-resistant surface treatment for extended durability.
- Optimized crank pin bearing radial running clearance for maximum performance.
- Precision honing ensures an ultra-round bearing surface.
- Engineered oiling slots maximize rod strength and bearing life.
- Double-drilled small ends provide enhanced lubrication and cooling for the piston pin, reducing top-end distortion.
- Silver-coated bronze phosphor thrust washers with a dimpled design increase oil retention and reduce friction.
- Crank pin bearings are manufactured with high-quality hot-rolled steel, case hardened to 58-62 RC.
- Caged needle roller bearings support the highest possible RPM.
- Precision-machined crank webs.
- Includes top-end bearing and gasket.
Included Items:
- One Crankshaft with connecting rod installed
- Two 22 x 56 x 16mm Bearings
- One Bottom End gasket set with 10 seals
