CRANKSHAFT BOTTOM KIT 03-25 YZ250, WISECO WPC134 FULL ASSEMBLY
Wiseco Crankshaft Bottom End Full Assembly WPC134. Precision-trued to OEM specifications and factory assembled. Connecting rods are double-forged to maintain superior dimensional consistency through improved grain flow. Shot-peening eliminates residual stresses and smoothly blends the rod forging surfaces. Corrosion-resistant surface treatment. Top and bottom end rod bores case hardened to 58-62 RC to optimize bearing running surface. Crank pin bearing radial running clearance is optimized to ensure maximum performance. Precision honing ensures ultra-round bearing surface. Precision-engineered oiling slots maximize rod strength and bearing life. Double-drilled small ends provide the piston pin with extra lubrication and cooling, reducing distortion of top end due to thermal transfer from the piston. Silver-coated bronze phosphor thrust washers with dimpled design increase oil retention and reduce friction between rod and washer interface. Crank pin bearings are manufactured with the highest-quality hot-rolled steel case hardened to 58-62 RC.
- SKU
- 56-186.WI
- Brand
- Wiseco
- Availability
- In Stock (2)
FULL DESCRIPTION
Wiseco Crankshaft Bottom Assembly WPC134
This Wiseco Crankshaft Bottom Assembly WPC134 is engineered for precision and durability, providing a full assembly for your motorcycle's engine. Each component is designed to meet or exceed OEM specifications for optimal performance and longevity.
Key Features:
- Precision Trued: Crankshaft is trued to OEM specifications for accurate engine operation.
- Double-Forged Connecting Rods: Ensures superior dimensional consistency through improved grain flow.
- Shot-Peened Finish: Eliminates residual stresses and smoothly blends rod forging surfaces for increased strength.
- Corrosion-Resistant Surface Treatment: Protects components from environmental degradation.
- Case-Hardened Bores: Top and bottom end rod bores are case hardened to 58-62 RC for an optimized bearing running surface.
- Optimized Bearing Clearance: Crank pin bearing radial running clearance is precisely set for maximum performance.
- Precision Honing: Ensures an ultra-round bearing surface for smooth operation.
- Engineered Oiling Slots: Maximizes rod strength and bearing life through intelligent oiling channels.
- Double-Drilled Small Ends: Provide enhanced lubrication and cooling for the piston pin, reducing thermal distortion.
- Silver-Coated Bronze Phosphor Thrust Washers: Feature a dimpled design to increase oil retention and reduce friction.
- High-Quality Crank Pin Bearings: Manufactured with the highest-quality hot-rolled steel and case hardened to 58-62 RC.
- Full Assembly: Includes bearings and gaskets for a complete installation.
