Description
If you’re running a KX450F and want measurable gains in top-end power and combustion efficiency, a quality piston upgrade is one of the most direct paths to real performance. The Wiseco PK1841 delivers the compression ratio and material science needed to push your bike’s output without sacrificing reliability—critical when you’re pushing hard on the track or in deep terrain.
This kit pairs a high-silicon aluminum forging with precision CNC tolerances to ensure your engine runs at its peak. You’ll see the difference in throttle response and sustained power, especially in the mid-to-top RPM range where it matters most.
- 96mm bore diameter
- 12.5:1 compression ratio
- High-silicon aluminum alloy
- Forged construction
- CNC-machined tolerances
- Kawasaki KX450F 2009–2012
- Bolt-on installation
- MPN: PK1841









