Christmas Sale Crankshaft (kit)-09210549 Holiday Edition [DnItziaK]

Crankshaft Kit for Yamaha YZ125

The Crankshaft Kit (Kit)-09210549 is a comprehensive solution for your Yamaha YZ125 and YZ125X offroad motorcycles. This kit includes not just the crankshaft, but also the top end bearing, premium main bearings, and a complete bottom end gasket set. With this single part number, you can rest assured that you have everything you need for a seamless and efficient installation process.

Key Features and Specifications

This crankshaft kit is designed to meet and exceed OEM specifications, ensuring that your engine runs smoothly and efficiently. The crankshaft is factory assembled and precision trued, guaranteeing the highest level of quality. The Wiseco connecting rods, made from double-forged steel, maintain superior dimensional consistency through improved grain flow. Additionally, the shot-peening process eliminates residual stresses and smoothly blends the rod forging surfaces, while the corrosion-resistant surface treatment ensures long-lasting durability.

Performance and Reliability

The Crankshaft Kit is engineered to optimize performance and reliability. The top and bottom end rod bores are case hardened to 58-62 RC, which optimizes the bearing running surface. The crank pin bearing radial running clearance is optimized for maximum performance, and precision honing ensures an ultra-round bearing surface. The precision-engineered oiling slots maximize rod strength and bearing life, while the double-drilled small ends provide the piston pin with extra lubrication and cooling. The silver-coated bronze phosphor thrust washers, with their dimpled design, increase oil retention and reduce friction between rod and washer interface. With caged needle roller bearings and precision-machined crank webs, this kit is designed for the highest possible rpm and maximum performance. Wiseco's complete gasket kits are made from premium materials for maximum sealing and reliability, ensuring that your engine runs smoothly and efficiently for years to come.