CRANKSHAFT BOTTOM KIT 07-25 CRF150R, WISECO WPC149 HONDA

Wiseco Crankshaft Bottom Kit for Honda CRF150R

This Wiseco Crankshaft Bottom Kit is designed to meet the rigorous demands of high-performance engines. Each component is engineered for durability, precision, and optimal performance, ensuring your motorcycle's engine runs at its peak potential.

Key Features:

• Precision-Trued Shaft: Crankshaft is precision-trued to OEM specifications for accurate engine assembly and smooth operation.
• Factory Assembled Connecting Rods: Connecting rods are factory assembled and double-forged to maintain superior dimensional consistency and improved grain flow.
• Shot-Peened Finish: Shot-peening process eliminates residual stresses and smoothly blends the rod forging surfaces for enhanced durability.
• Corrosion-Resistant Treatment: Features a corrosion-resistant surface treatment to protect against environmental factors.
• Hardened Rod Bores: Top and bottom end rod bores are case hardened to 58-62 RC to optimize the bearing running surface and extend component life.
• Optimized Bearing Clearance: Crank pin bearing radial running clearance is optimized to ensure maximum performance and efficiency.
• Precision Honing: Precision honing ensures an ultra-round bearing surface, critical for smooth rotation and reduced friction.
• Engineered Oiling Slots: Precision-engineered oiling slots are incorporated to maximize rod strength and bearing life by ensuring adequate lubrication.
• Enhanced Piston Pin Lubrication: Double-drilled small ends provide the piston pin with extra lubrication and cooling, reducing top-end distortion caused by thermal transfer from the piston.
• Advanced Thrust Washers: Silver-coated bronze phosphor thrust washers with a dimpled design increase oil retention and reduce friction between the rod and washer interface.
• High-Quality Crank Pin Bearings: Crank pin bearings are manufactured using only the highest-quality materials for reliable performance.