Description
Features
- These pistons have been designed to incorporate a domed piston deck, resulting in a high compression profile and offsetting any change in volume caused by valve dishes. While maintaining compression through piston shape, weve minimized moving mass in our stainless steel valvetrain conversion by lightening our steel valves. The conversion to Black Diamond Stainless Steel Valves offers up to double the life over stock Titanium valves without a loss in performance.
- All of the gaskets, rings, pins and seals required for a top end rebuild
- Black Diamond Stainless Steel conversion system significantly increases valve durability
- Includes Top End Gasket Kit by Cometic
- Designed specifically for the performance demands of popular racing MX Bikes and Quads
- Includes KPMI® S.S. Black Diamond Valves, Stock Head Dia.
- Includes Dual Spring Titanium Retainer Spring Kit, Which Allows for 0.440 In. and Ex. Valve Lift
- Pistons designed to maintain the stock compression after the effects of the dished stainless valves
- Includes Piston, Rings, Clips and Pin
- 2618 Alloy Fully CNC Machined Piston with performance skirt coating
- Lightweight Racing Spring Kit compatible with high performance cams
| 2015 | Yamaha | WR450F |
| 2014 | Yamaha | WR450F |
| 2013 | Yamaha | WR450F |
| 2012 | Yamaha | WR450F |
| 2011 | Yamaha | WR450F |
| 2010 | Yamaha | WR450F |
| 2009 | Yamaha | WR450F |
| 2008 | Yamaha | WR450F |
| 2007 | Yamaha | WR450F |
| 2009 | Yamaha | YZ450F |
| 2008 | Yamaha | YZ450F |
| 2007 | Yamaha | YZ450F |
| 2006 | Yamaha | YZ450F |
