Engine

ProX Piston Ring Set RD350LC-YPVS 80-87 (66.00mm) 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 Ring Set TM MX450F 09-11 (95.00mm) 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...

ProX Piston Ring Set TRX250R 87-89 2 stroke (67.00mm) 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 Ring Set TS50ER/X/AD50/Address (41.50mm) 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 Ring Set XR650R 00-07 (101.00mm) 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...

ProX Piston Ring Set Yamaha GP760 + Suv/GP1200 (86.00mm) 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...

ProX Piston Ring Set YZ125 94-01 (54.00mm) 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...

ProX Piston Ring Set YZ250 88-98 WR250R 88-91 (68.00mm) 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...

ProX Piston Ring Set YZ65 18-23 (43.50mm) 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...

ProX Piston Kit KTM 350SX-F 11-23/FC350 14-23 13.5:1 (87.96mm) ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine...

ProX Ring Set Husqvarna TC250 06-07 + TE250 06-09 (76.00mm) 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...

ProX Shoulder Big End Pin RM125 79-83 Our chromed crank pins are specially designed for the application. Every ProX crank pin is machined precisely and treated to get the best hardness and properties to stand the extreme conditions where it is used for...

ProX Steel Exhaust Valve CRF150R 07-23 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX valve are made by the...

ProX Steel Exhaust Valve CRF250R 04-07 + CRF250X 04-17 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX valve...

ProX Steel Exhaust Valve CRF250R 08-09 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX valve are made by the...

ProX Steel Exhaust Valve CRF250R 10-15 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX valve are made by the...

ProX Steel Exhaust Valve CRF450R 02-06 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX valve are made by the...

ProX Steel Exhaust Valve CRF450R 13-23 + CRF450RX 17-23 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX valve...

ProX Steel Exhaust Valve KTM 450/500EXC-F 20-24 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX valve are...

ProX Steel Exhaust Valve KTM350EXC-F 20-23 + Freeride 350 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX...

ProX Steel Exhaust Valve KTM520/525 00-07 + 450/525XC ATV Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX...

ProX Steel Exhaust Valve XR70R 97-03 + CRF70F 04-12 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX valve are...

ProX Steel Exhaust Valve/Spring Kit KX250F04-16 + RM-Z25004-06 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The...

ProX Steel Exhaust Valve/Spring Kit KX450F 09-18 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX valve are...

ProX Steel Exhaust Valve/Spring Kit LT-R450 06-11 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX valve are...

ProX Steel Exhaust Valve/Spring Kit RM-Z250 07-23 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX valve are...

ProX Steel Exhaust Valve/Spring Kit RM-Z450 05-06 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX valve are...

ProX Steel Exhaust Valve/Spring Kit RM-Z450 07 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX valve are made...

ProX Steel Exhaust Valve/Spring Kit RM-Z450 08-23 + RMX450Z Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX...

ProX Steel Exhaust Valve/Spring Kit YZ/WR250F 01-13 Next to the Titanium valves ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX valve are...