Piston Yamaha YZ 426 complete ProX

ProX Racing Parts complete piston kit made of die-cast aluminum alloy with high silicon content and CNC machined: ProX kits respect minimum tolerances and guarantee a quality superior to the original parts. ProX complete piston kits are available in standard size and in different sizes with minimum increments. For standard size pistons, it is not necessary to drill or grind the cylinder again: for oversize pistons, it is necessary to drill and grind the cylinder again. Pro-X segments and pistons are interchangeable and compatible with original pistons and segments. Kit contents: piston, segments, piston pin and seal clip.

ProX Racing Parts piston kit:

• standard: bore 94.95mm