Cylinder Works 07-15 WR 450 F/06-09 YZ 450 F Standard Bore Cylinder Kit
OEM-style standard bore kits include a cast aluminum Cylinder Works cylinder, Vertex Piston and gaskets needed to restore horsepower and performance, as a competitive price point, compared to OEM options.
- Nickel silicon carbide (NSC) electroplate bore which allows for tighter tolerances, lower friction and extreme durability
- Precision diamoned honed to exact dimensions and proper surface finish to ensure ring seal and oil retention
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2015 | Yamaha | WR450F | Base |
| 2006-2009 | Yamaha | YZ450F | Base |
Product Information
Product Information
Shipping & Returns
Shipping & Returns

Cylinder Works 07-15 WR 450 F/06-09 YZ 450 F Standard Bore Cylinder Kit
Cylinder Works 07-15 WR 450 F/06-09 YZ 450 F Standard Bore Cylinder Kit
OEM-style standard bore kits include a cast aluminum Cylinder Works cylinder, Vertex Piston and gaskets needed to restore horsepower and performance, as a competitive price point, compared to OEM options.
- Nickel silicon carbide (NSC) electroplate bore which allows for tighter tolerances, lower friction and extreme durability
- Precision diamoned honed to exact dimensions and proper surface finish to ensure ring seal and oil retention
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2015 | Yamaha | WR450F | Base |
| 2006-2009 | Yamaha | YZ450F | Base |
Original: $103,163.00
-70%$103,163.00
$30,948.90Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
OEM-style standard bore kits include a cast aluminum Cylinder Works cylinder, Vertex Piston and gaskets needed to restore horsepower and performance, as a competitive price point, compared to OEM options.
- Nickel silicon carbide (NSC) electroplate bore which allows for tighter tolerances, lower friction and extreme durability
- Precision diamoned honed to exact dimensions and proper surface finish to ensure ring seal and oil retention
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2015 | Yamaha | WR450F | Base |
| 2006-2009 | Yamaha | YZ450F | Base |



















