ProX Big End Cage (26x35x20) Flat/Silver CR500 High output engines require high end parts. For these specific engines, like motocross and ATV engines we offer flat silver big end cages. These...

ProX Big End Pin (16x35.90mm) KTM50SX 01-23 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...

ProX Big End Pin (30x54.80mm) YZ250F 01-02 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...

ProX Piston Kit CR500 82-01 (89.00mm) 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...

ProX Piston Kit CR500 82-01 (90.00mm) 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...

ProX Washer Silver (26x42x1.5) CR500 87-01 Our OEM style washers increases oil retention and reduces friction between rod, washer and crank web. We offer washers in different material exactly as OEM...