Hot Rods 4050 Crankshaft for Yamaha YZ450F – High-Performance Rebuildable Crankshaft with Increased Stroke

The Hot Rods 4050 crankshaft is a premium replacement component designed specifically for Yamaha YZ450F models from 2003 to 2005. Built to meet or exceed OEM standards, this crankshaft offers a reliable, durable, and high-performance solution for your motorcycle engine. Sold complete with original proven Hot Rods connecting rods, top end bearings, and crankshaft webs, it arrives ready for installation, minimizing downtime and simplifying the rebuild process. This factory-assembled crankshaft is precision trued to OEM specifications, ensuring optimal balance and performance. It features high-quality gears manufactured at DIN Class 9 or higher, providing smooth operation and longevity. The Hot Rods 4050 is fully rebuildable using genuine Hot Rods connecting rods and bearings, offering flexibility for future maintenance or upgrades. As a standard crankshaft, it delivers excellent performance, but it also comes in a stroker version, which includes all the standard features plus increased stroke for higher displacement and horsepower. The stroker model is CNC machined and dynamically balanced to accommodate the increased stroke, ensuring smooth operation without the need for modifications in most applications. It uses stock pistons in most cases and can be paired with Cylinder Works Big Bore cylinders for significant displacement gains. This versatile crankshaft is an ideal choice for enthusiasts seeking reliable power upgrades or rebuild solutions for their Yamaha YZ450F.

Features:

• Crankshafts designed for reliable engine performance

• Premier alternative to costly OEM crankshafts

• Sold complete with proven Hot Rods connecting rods, top end bearings, and crankshaft webs

• Factory assembled and trued to OEM specifications for optimal balance

• Fully rebuildable with genuine Hot Rods components

• High-quality gears manufactured at DIN Class 9 or higher

• Available as a stroker crankshaft for increased displacement and horsepower

• Increased stroke for more power and performance

• Drop-in replacement requiring no modifications in most applications

• CNC machined and dynamically balanced for smooth operation

• Compatible with stock pistons in most cases

• Ideal for pairing with Cylinder Works Big Bore cylinders for significant power gains

Fits,
Yamaha YZ450F 2003
Yamaha YZ450F 2004
Yamaha YZ450F 2005