CRANKSHAFT BOTTOM KIT 05-07 CR125, WISECO WPC177 HONDA MX

Wiseco Crankshaft Bottom Kit

This Wiseco Crankshaft assembly includes Main Bearings and a Gasket set, designed for enhanced performance and durability. The connecting rods are double-forged for superior dimensional consistency and improved grain flow. A shot-peening process eliminates residual stresses and smooths the rod forging surfaces. For corrosion resistance, a special surface treatment is applied.

The top and bottom end rod bores are case hardened to 58-62 RC to optimize the bearing running surface. Crank pin bearing radial running clearance is precisely calibrated to ensure maximum performance. Precision honing guarantees an ultra-round bearing surface. Engineered oiling slots maximize rod strength and extend bearing life. Double-drilled small ends provide the piston pin with extra lubrication and cooling, reducing distortion of the top end due to thermal transfer from the piston.

Features include:

• Double-forged connecting rods for superior consistency.
• Shot-peened surfaces to eliminate stress.
• Corrosion-resistant surface treatment.
• Case-hardened rod bores (58-62 RC) for optimal bearing surface.
• Optimized crank pin bearing radial running clearance.
• Precision-honed bearing surfaces.
• Engineered oiling slots for increased strength and bearing life.
• Double-drilled small ends for enhanced lubrication and cooling.
• Silver-coated bronze phosphor thrust washers with dimpled design for increased oil retention and reduced friction.
• Crank pin bearings manufactured with the highest quality materials.