ProX  Piston  Ring  Set  BORE 77.00mm
ProX piston rings are made by OEM factories to exact

specifications. ProX uses well known brands like Rikken Japan, TP and NPR to be sure you will get the quality you might expect from our brand. All ProX piston rings can be used in cast iron bores, nickel ceramic platings (Nikasil), boron composite and electrofusion bores.

Yamaha WR250F (2001-2013), Yamaha YZ250F (2001-2013), Gas-Gas EC250F 4T (2010-2014),

PROX 02.2402