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ProX

ProX
$191.33 at Amazon

ProX racing pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction pis...ton alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your motorcycle, scooter, moped, ATV, personal watercraft and more. ProX Piston Kits for sleeved cylinders are available in standard size and a wide range of oversize's. The availability of oversize's up to 2 millimeters significantly helps to increase the lifespan of a cylinder by offering more re-boring possibilities. ProX racing pistons for plated cylinders come in standard size, as well as in A, B, C, D+ oversize's. All ProX Piston Kits are supplied complete with pistons, piston rings, wrist pin and circlips, ready to install. Read More

ProX
$126.31 at Amazon

ProX steel valve and spring kits offer increased durability and less wear under extreme conditions, easily lasting 3 times longer ...than the OEM titanium valves. Nitrided valves offer high microhardness while supersmooth surface finish reduces friction between stem and guide. Spring are made from premium chrome vanadium steel for higher performance and durability under high RPM. These stronger valve springs deal with the extra weight of the steel valves. Fully rebuildable with OEM retainers, bases and seals without the need of any further engine modifications. Fits: Honda CRF 250 R 2004-2007, CRF 250 X 2004-2013. Read More

ProX
$88.77 at Amazon

ProX racing pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction pis...ton alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your motorcycle, scooter, moped, ATV, personal watercraft and more. ProX Piston Kits for sleeved cylinders are available in standard size and a wide range of oversize's. The availability of oversize's up to 2 millimeters significantly helps to increase the lifespan of a cylinder by offering more re-boring possibilities. ProX racing pistons for plated cylinders come in standard size, as well as in A, B, C, D+ oversize's. All ProX Piston Kits are supplied complete with pistons, piston rings, wrist pin and circlips, ready to install. Read More

ProX
$85.59 at Amazon

ProX racing pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction pis...ton alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your motorcycle, scooter, moped, ATV, personal watercraft and more. ProX Piston Kits for sleeved cylinders are available in standard size and a wide range of oversize's. The availability of oversize's up to 2 millimeters significantly helps to increase the lifespan of a cylinder by offering more re-boring possibilities. ProX racing pistons for plated cylinders come in standard size, as well as in A, B, C, D+ oversize's. All ProX Piston Kits are supplied complete with pistons, piston rings, wrist pin and circlips, ready to install. Read More

ProX
$85.59 at Amazon

ProX racing pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction pis...ton alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your motorcycle, scooter, moped, ATV, personal watercraft and more. ProX Piston Kits for sleeved cylinders are available in standard size and a wide range of oversize's. The availability of oversize's up to 2 millimeters significantly helps to increase the lifespan of a cylinder by offering more re-boring possibilities. ProX racing pistons for plated cylinders come in standard size, as well as in A, B, C, D+ oversize's. All ProX Piston Kits are supplied complete with pistons, piston rings, wrist pin and circlips, ready to install. Read More

ProX
$74.47 at Amazon

ProX racing pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction pis...ton alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your motorcycle, scooter, moped, ATV, personal watercraft and more. ProX Piston Kits for sleeved cylinders are available in standard size and a wide range of oversize's. The availability of oversize's up to 2 millimeters significantly helps to increase the lifespan of a cylinder by offering more re-boring possibilities. ProX racing pistons for plated cylinders come in standard size, as well as in A, B, C, D+ oversize's. All ProX Piston Kits are supplied complete with pistons, piston rings, wrist pin and circlips, ready to install. Read More

ProX
$74.47 at Amazon

ProX racing pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction pis...ton alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your motorcycle, scooter, moped, ATV, personal watercraft and more. ProX Piston Kits for sleeved cylinders are available in standard size and a wide range of oversize's. The availability of oversize's up to 2 millimeters significantly helps to increase the lifespan of a cylinder by offering more re-boring possibilities. ProX racing pistons for plated cylinders come in standard size, as well as in A, B, C, D+ oversize's. All ProX Piston Kits are supplied complete with pistons, piston rings, wrist pin and circlips, ready to install. Read More

ProX
$175.53 at Amazon

ProX racing pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction pis...ton alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your motorcycle, scooter, moped, ATV, personal watercraft and more. ProX Piston Kits for sleeved cylinders are available in standard size and a wide range of oversize's. The availability of oversize's up to 2 millimeters significantly helps to increase the lifespan of a cylinder by offering more re-boring possibilities. ProX racing pistons for plated cylinders come in standard size, as well as in A, B, C, D+ oversize's. All ProX Piston Kits are supplied complete with pistons, piston rings, wrist pin and circlips, ready to install. Read More

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