ProX Piston Kit CRF250R '14-15 13.5:1 "ART" (76.78mm)

ProX Piston Kit CRF250R '14-15 13.5:1 "ART" (76.77mm)

ProX Piston Kit CRF250R '16-17 13.8:1 (76.77mm)

ProX Piston Kit CRF250R '20-21 + CRF250RX 20-21 13.9:1 (78.98mm)

ProX Piston Kit CRF250R '20-21 + CRF250RX 20-21 13.9:1 (78.97mm)

ProX Piston Kit CRF250R '18-19 13.9:1 (78.99mm)

ProX Piston Kit CRF250R '18-19 13.9:1 (78.98mm)

ProX Piston Kit CRF250R '18-19 13.9:1 (78.97mm)

ProX Piston Kit CRF250R '16-17 13.8:1 (76.79mm)

ProX Piston Kit CRF250R '16-17 13.8:1 (76.78mm)

ProX Pstn Kit CRF230F '03-19/CRF230L '08-09 9.0:1 (67.50mm)

ProX Pstn Kit CRF230F '03-19/CRF230L '08-09 9.0:1 (66.50mm)

ProX Pstn Kit CRF230F '03-19/CRF230L '08-09 9.0:1 (66.00mm)

ProX Pstn Kit CRF230F '03-19/CRF230L '08-09 9.0:1 (65.50mm)

ProX Piston Kit CRF250R '20-21 + CRF250RX 20-21 13.9:1 (78.99mm)

ProX Piston Kit CRF450R '09-12 12.0:1 "ART" (95.96mm)

ProX High Comp Piston Kit CRF450R '09-12 13.0:1 (95.97mm)

ProX High Comp Piston Kit CRF450R '09-12 13.0:1 (95.96mm)

ProX Piston Kit CRF450R '02-03 11.5:1 (95.98mm)

ProX Piston Kit CRF450R '02-03 11.5:1 (95.97mm)

ProX Piston Kit CRF450R '02-03 11.5:1 (95.96mm)

ProX Piston Kit CRF450R '09-12 12.0:1 "ART" (95.98mm)

ProX Piston Kit CRF450R '09-12 12.0:1 "ART" (95.97mm)