Hot Rods 421-4006 Complete Crankshaft Assembly for Honda TRX250R and ATC250R

The Hot Rods 421-4006 complete crankshaft assembly offers a reliable and cost-effective alternative to OEM crankshafts for Honda TRX250R and ATC250R models. Crafted for durability and performance, this crankshaft comes fully assembled and ready for installation, featuring the original Hot Rods connecting rods, top end bearings, and crankshaft webs. It is factory assembled and precisely trued to meet or exceed OEM specifications, ensuring optimal performance and longevity. Designed to be fully rebuildable with genuine Hot Rods components, this crankshaft provides a versatile solution for engine rebuilds and upgrades.
The crankshaft is manufactured with high-quality gears that meet DIN Class 9 standards or higher, ensuring smooth operation and durability. Additionally, the assembly includes a stroker option that delivers increased stroke, resulting in higher displacement and horsepower. This drop-in replacement requires no modifications in most applications and is CNC machined and dynamically balanced to accommodate the increased stroke. It typically uses the stock piston, making it compatible with existing setups, but can also be combined with Cylinder Works Big Bore cylinders for significant power gains. Whether for rebuilding or performance enhancement, this crankshaft assembly is engineered to deliver reliable performance for your Honda ATV or motorcycle.

Features:

• Crankshafts designed for durability and performance

• Premier alternative to costly OEM crankshaft

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

• Factory assembled and trued to OEM specifications, meeting or surpassing OEM in performance and durability

• Fully rebuildable with genuine Hot Rods components

• Gears manufactured to DIN Class 9 or higher standards

• Stroker crankshaft option with increased stroke for more displacement and horsepower

• Drop-in replacement requiring no modifications in most applications

• CNC machined and dynamically balanced for increased stroke

• Compatible with stock pistons in most applications

• Can be paired with Cylinder Works Big Bore cylinders for significant power gains

Fits,
Honda ATC250R 1985
Honda ATC250R 1986
Honda TRX250R 1986