Yamaha TRX450R Cylinder Kit – 94.00mm Standard Bore, 10.5:1 (Cylinder Works 2004–2005)

Refresh your TRX450R with this Cylinder Works 94.00mm stock-bore cylinder kit matched to a Vertex 10.5:1 piston. The nickel–silicon carbide–plated bore delivers durability and heat control while maintaining OEM look and fitment.

What’s Included

• 94.00mm standard-bore cylinder (OEM appearance)

• Vertex piston kit, 10.5:1 compression

• Piston rings, wrist pin, and circlips

• Top-end gasket kit (valve stem seals not included)

Fitment

• Honda TRX450R: 2004, 2005

Warranty Info

Covered by the manufacturer’s warranty against defects in materials and workmanship.

Key Features

• Nickel–silicon carbide (Ni–SiC) plated bore for longer life

• Matched Vertex piston for performance and reduced engine noise

• Direct OEM-style replacement; no machine work needed*

• Replacement pistons, rings, and gasket kits available

• Designed for closed-course competition use

* Always verify clearances and tuning for your specific build and conditions.
Compliance: These items are designed exclusively for closed course competition use only. Use on public lands or highways in California is illegal.