If you want the extra power of a stroker crank but prefer the reliability and throttle response of an OEM bore, this kit is for you. Designed specifically for 2004–2005 Honda TRX450R models, this build combines factory sizing with high-performance internals for an ultra-reliable, hard-pulling motor.
BPR 94mm OEM Bore Cylinder
Wiseco 11.5:1 Forged Piston
Piston rings, wristpin, and circlips
+3mm Hotrods Stroker Crankshaft with rod
Stage 3 Hotcam
Camshaft bearing
Crankshaft bearings
Transmission bearing kit
Shift cam bearing
Water pump bearing
Complete gasket set
MLS Big Bore Head Gasket
Full engine seal kit
Upgraded Cam Chain
Clutch kit (fibers, steels, springs)
NGK spark plug
🔁 OEM Bore, Bigger Power: Keeps 94mm stock sizing for easier tuning and cooler running
⚙️ +3mm Stroker Crank: Boosts displacement and torque with no machining needed
🧠 Stage 3 Cam: Adds serious mid-to-top end pull
🔩 Built to Last: High-quality components, professionally matched for a reliable build
📦 All-in-One Solution: Every internal part you need for a complete performance rebuild
✅ 2004 Honda TRX450R 2x4 (Kickstart)
✅ 2005 Honda TRX450R 2x4 (Kickstart)
⚠️ Not for electric start TRX450ER models.
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