CRANKSHAFT BOTTOM KIT 1993-2001 YAMAHA YZ80 WISECO WPC122
Premium replacement crankshaft assembly designed to meet OEM specifications, delivering durability, reliability and consistent performance for high-demand two-stroke applications. Features precision trued to OEM specifications for fit and operation. Double-forged connecting rods for dimensional consistency and improved grain flow. Shot-peened surfaces to eliminate residual stresses and blend forging transitions. Corrosion-resistant surface treatment. Case-hardened rod bores (58-62 RC) for optimal bearing running surfaces. Optimised bearing clearance for performance and longevity. Precision-honed bearing surfaces for ultra-round geometry. Oiling slots to enhance rod strength and maximise bearing life. Double-drilled small ends to improve piston pin lubrication and cooling. Silver-coated thrust washers with dimpled faces for oil retention and reduced friction. High-quality crank pin bearings made from hot-rolled steel and case-hardened to 58-62 RC. Assembly type: Factory-assembled crankshaft with connecting rod. Intended use: High-demand two-stroke applications. Manufacturer: Wiseco.
- SKU
- 56-177_WI.CBK
- Brand
- Wiseco
- Availability
- In Stock (4)
FULL DESCRIPTION
Wiseco Crankshaft Bottom Kit for High-Demand Two-Stroke Applications
This premium replacement crankshaft assembly is expertly engineered to meet OEM specifications, providing exceptional durability, unwavering reliability, and consistent performance for demanding two-stroke engines.
Key Features:
- Precision trued to OEM specifications for accurate fit and smooth operation.
- Double-forged connecting rods ensure dimensional consistency and superior grain flow.
- Shot-peened surfaces reduce residual stresses and refine forging transitions.
- Corrosion-resistant surface treatment enhances longevity.
- Case-hardened rod bores (58–62 RC) create optimal surfaces for bearing performance.
- Optimised bearing clearance balances performance and extended lifespan.
- Precision-honed bearing surfaces achieve ultra-round geometry for enhanced performance.
- Oiling slots are incorporated to boost rod strength and maximise bearing life.
- Double-drilled small ends improve piston pin lubrication and cooling efficiency.
- Silver-coated thrust washers feature dimpled faces for superior oil retention and reduced friction.
- High-quality crank pin bearings are constructed from hot-rolled steel and case-hardened to 58–62 RC.
Specifications:
- Assembly Type: Factory-assembled crankshaft with connecting rod.
- Intended Use: High-demand two-stroke applications.
