Biella Yamaha YZ 250 99-18 Prox

The PROX rods are built in Japan with identical steels and tolerances to the original replacement.
The roller cages and the plug, included in the kit, are of high quality.
The assembly of each connecting rod must be performed ONLY by qualified personnel, equipped with the appropriate equipment and proven experience, respecting the tolerances indicated by the engine manufacturer.
Provided without any warranty.