Description
Features
- New T-box forgings and DLC coated wrist pins on forged pistons with highest compression ratios for increased strength and performance.
- All piston skirts are coated with a high-tech Molybdenum Disulfide coating for faster break-in time and increased piston life
- Cast piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston.
- All pistons are heat treated with a T-5 hardening and tempering cycle.
- Top end piston kit includes piston, rings, pins, circlips, top end gaskets, and wrist pin bearing or cam chain where applicable.
- All rings are OEM replacements.
| 2018 | Yamaha | YZ85 |
| 2017 | Yamaha | YZ85 |
| 2016 | Yamaha | YZ85 |
| 2015 | Yamaha | YZ85 |
| 2014 | Yamaha | YZ85 |
| 2013 | Yamaha | YZ85 |
| 2012 | Yamaha | YZ85 |
| 2011 | Yamaha | YZ85 |
| 2010 | Yamaha | YZ85 |
| 2009 | Yamaha | YZ85 |
| 2008 | Yamaha | YZ85 |
| 2007 | Yamaha | YZ85 |
| 2006 | Yamaha | YZ85 |
| 2005 | Yamaha | YZ85 |
| 2004 | Yamaha | YZ85 |
| 2003 | Yamaha | YZ85 |
| 2002 | Yamaha | YZ85 |
