CRANKSHAFT ASSY 01-04 YZ125, WISECO WPC125 YAMAHA MX
Wiseco Crankshaft Assembly with Bearings and Gaskets WPC125. Precision-trued to OEM specifications and factory assembled. Connecting rods are double-forged for superior dimensional consistency and improved grain flow. Shot-peening eliminates residual stresses and smoothly blends rod forging surfaces. Corrosion-resistant surface treatment. Top and bottom end rod bores are case hardened to 58-62 RC to optimize bearing running surface. Crank pin bearing radial running clearance is optimized for maximum performance. Precision honing ensures an ultra-round bearing surface. Precision-engineered oiling slots maximize rod strength and bearing life. Double-drilled small ends provide piston pin with extra lubrication and cooling, reducing distortion from thermal transfer. 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 highest-quality hot-rolled steel, case hardened to 58-62 RC. Part number 56-182.WI.
- SKU
- 56-182.WI.CBK
- Brand
- Wiseco
- Availability
- In Stock (1)
FULL DESCRIPTION
Wiseco Crankshaft Assembly for Yamaha YZ125
This Wiseco Crankshaft Assembly is engineered for high-performance off-road motorcycles, specifically designed to meet or exceed OEM specifications. It is factory assembled and precision-trued to ensure optimal engine function and longevity.
Key Features:
- Double-Forged Connecting Rods: The connecting rods are double-forged for superior dimensional consistency and improved grain flow, enhancing strength and durability.
- Shot-Peened Finish: This process eliminates residual stresses and smooths the rod forging surfaces, contributing to overall toughness.
- Corrosion-Resistant Surface Treatment: Protects components from environmental damage and wear.
- Case-Hardened Bores: The top and bottom end rod bores are case hardened to 58-62 RC, creating an optimized running surface for bearings.
- Optimized Bearing Clearance: The crank pin bearing radial running clearance is precisely set for maximum performance.
- Precision Honing: Ensures an ultra-round bearing surface for smooth operation and reduced friction.
- Engineered Oiling Slots: These slots are precision-engineered to maximize rod strength and extend bearing life by ensuring adequate lubrication.
- Double-Drilled Small Ends: Provide extra lubrication and cooling to the piston pin, reducing distortion caused by heat transfer from the piston.
- Silver-Coated Thrust Washers: Features thrust washers made of bronze phosphor with a dimpled design. These increase oil retention and reduce friction between the rod and washer interface.
- High-Quality Crank Pin Bearings: Manufactured with the highest-quality hot-rolled steel and case hardened to 58-62 RC for exceptional durability and performance.
- Includes: This assembly comes complete with necessary bearings and gaskets for a complete installation.
