Vertex Piston Size 53.94 (With Single Piston Spring) For Yamaha YZ 125 05-Onwards & Fantic XX/XE 125 2021

Give your Yamaha YZ 125 or Fantic 125 new life and more power with the Vertex 53.94 mm Single Piston Ring Piston – the high-performance piston that fits perfectly on Yamaha YZ 125 (2005 and newer) and Fantic XX/XE 125 (2021 and newer)!

Vertex is known for its top-quality 2-stroke pistons, and this 53.94 mm option (standard oversize) delivers a direct, reliable upgrade. The piston is made from high-quality forged aluminum with a special coating for excellent heat dissipation and minimal wear. The single piston ring delivers a lightweight, responsive feel, ideal for riders looking for a great balance of performance, reliability, and affordability.

This piston delivers better compression, cleaner combustion, and quicker throttle response compared to a worn original piston. Whether you're doing a full engine rebuild, starting a new season, or just want to get your 125cc 2-stroke running smoothly again, the Vertex 53.94 mm piston will get your engine back to top condition.

This kit comes complete with piston rings, a piston pin, and circlips, and fits 100% plug-and-play into the original cylinder (or after a light hone). Simple installation and a perfect fit make this piston a favorite among both recreational riders and serious motocross riders.