JE Pistons Yamaha YZ450F 14:00:1 97MM Bore Piston Kit

If you're rebuilding the top end of your 2014-2017 Yamaha YZ450F or YZ450FX, or your 2016-2017 WR450F, a new piston kit is essential. This JE Pistons kit is built to handle the demands of a high-performance engine, giving you a solid option for restoring or enhancing your bike's power.

This piston is forged from high-strength aluminum, a common practice for performance pistons because it offers a good balance of strength and weight. It features a 97mm bore and a 14.00:1 compression ratio, which is higher than stock. A higher compression ratio generally means more power, especially when paired with proper tuning. JE Pistons is a well-known name in performance engine components, and this kit is made to fit right into your Yamaha's cylinder, making installation straightforward for someone experienced with engine work.

When installing this piston, remember that a higher compression ratio often requires careful attention to fuel octane and engine tuning to prevent issues like detonation. This kit includes the piston, rings, wrist pin, and clips, so you'll have most of what you need to get your engine back together. Always refer to the manufacturer's installation instructions for specific details.