Welcome to our store

Collection: ProX Racing Parts

ProX Racing Parts — High-Performance Engine Components for Off-Road, ATV & Scooters

ProX Racing Parts is a globally recognized brand specializing in high-quality internal engine components for motorcycles, scooters, and ATVs. With manufacturing based mainly in Japan, ProX delivers precision-made pistons, connecting rods, crankshafts, valves, and other vital engine parts that meet or exceed OEM standards. Ideal for off-road, motocross, and racing applications, ProX parts combine durability, performance, and exact fitment. Explore our full range of ProX components and enjoy fast delivery and worldwide shipping.

REAR SPROCKET 4306 52 ALUMINUM HONDA CR 80/85 '86-07, CRF 150R '07-25 (430652) (JTR215.52) (STD.+3) (CHAIN.420), ProX

REAR SPROCKET 4306 52 ALUMINUM HONDA CR 80/85 '86-07, CRF 150R '07-25 (430652) (JTR215.52) (STD.+3) (CHAIN.420), ProX

Regular price $51.02 USD

Regular price Sale price $51.02 USD
Unit price per
REAR SPROCKET 4306 53 ALUMINUM HONDA CR 80/85 '86-07, CRF 150R '07-25 (430653) (JTR215.53) (STD.+4) (CHAIN.420), ProX

REAR SPROCKET 4306 53 ALUMINUM HONDA CR 80/85 '86-07, CRF 150R '07-25 (430653) (JTR215.53) (STD.+4) (CHAIN.420), ProX

Regular price $51.02 USD

Regular price Sale price $51.02 USD
Unit price per
REAR SPROCKET 4306 55 ALUMINUM HONDA CR 80/85 '86-07, CRF 150R '07-25 (430655) (JTR215.55) (STD.+6) (CHAIN.420), ProX

REAR SPROCKET 4306 55 ALUMINUM HONDA CR 80/85 '86-07, CRF 150R '07-25 (430655) (JTR215.55) (STD.+6) (CHAIN.420), ProX

Regular price $50.66 USD

Regular price Sale price $50.66 USD
Unit price per
REAR SPROCKET 4306 56 ALUMINUM HONDA CR 80/85 '86-07, CRF 150R '07-25 (430656) (JTR215.56) (STD.+7) (CHAIN.420), ProX

REAR SPROCKET 4306 56 ALUMINUM HONDA CR 80/85 '86-07, CRF 150R '07-25 (430656) (JTR215.56) (STD.+7) (CHAIN.420), ProX

Regular price $51.02 USD

Regular price Sale price $51.02 USD
Unit price per
REAR SPROCKET 4486 46 STEEL ULTRALITE KTM SX 85/105 '03-'24 (448646) (JTR895.46) (STD.46) (CHAIN.428), ProX

REAR SPROCKET 4486 46 STEEL ULTRALITE KTM SX 85/105 '03-'24 (448646) (JTR895.46) (STD.46) (CHAIN.428), ProX

Regular price $45.35 USD

Regular price Sale price $45.35 USD
Unit price per
REAR SPROCKET 4486 47 ALUMINUM KTM SX 85 '03-'25, SX 105 '04-'11, HUSQVARNA TC 85 '14-'25, GAS GAS MC 85 '21-'25 (448647) (JTR895.47) (CHAIN 428), ProX

REAR SPROCKET 4486 47 ALUMINUM KTM SX 85 '03-'25, SX 105 '04-'11, HUSQVARNA TC 85 '14-'25, GAS GAS MC 85 '21-'25 (448647) (JTR895.47) (CHAIN 428), ProX

Regular price $50.66 USD

Regular price Sale price $50.66 USD
Unit price per
REAR SPROCKET 4486 47 STEEL ULTRALITE KTM SX 85/105 '03-'24 (448647) (JTR895.47) (STD.+1) (CHAIN.428), ProX

REAR SPROCKET 4486 47 STEEL ULTRALITE KTM SX 85/105 '03-'24 (448647) (JTR895.47) (STD.+1) (CHAIN.428), ProX

Regular price $43.96 USD

Regular price Sale price $43.96 USD
Unit price per
REAR SPROCKET 4486 48 ALUMINUMKTM SX 85 '03-'25, SX 105 '04-'11, HUSQVARNA TC 85 '14-'25, GAS GAS MC 85 '21-'25 (448648) (JTR895.48) (CHAIN 428), ProX

REAR SPROCKET 4486 48 ALUMINUMKTM SX 85 '03-'25, SX 105 '04-'11, HUSQVARNA TC 85 '14-'25, GAS GAS MC 85 '21-'25 (448648) (JTR895.48) (CHAIN 428), ProX

Regular price $50.37 USD

Regular price Sale price $50.37 USD
Unit price per
REAR SPROCKET 4486 48 STEEL ULTRALITE KTM SX 85 / 105 '03-'24 (448648JT) (JTR895.48) (CHAIN 428) COLOR BLACK, ProX

REAR SPROCKET 4486 48 STEEL ULTRALITE KTM SX 85 / 105 '03-'24 (448648JT) (JTR895.48) (CHAIN 428) COLOR BLACK, ProX

Regular price $43.96 USD

Regular price Sale price $43.96 USD
Unit price per
REAR SPROCKET 4486 49 STEEL ULTRALITE KTM SX 85 / 105 '03-'24 (448649JT) (JTR895.49) (CHAIN 428) BLACK COLOR, ProX

REAR SPROCKET 4486 49 STEEL ULTRALITE KTM SX 85 / 105 '03-'24 (448649JT) (JTR895.49) (CHAIN 428) BLACK COLOR, ProX

Regular price $43.31 USD

Regular price Sale price $43.31 USD
Unit price per
REAR SPROCKET 4486 50 STEEL ULTRALITE KTM SX 85 / 105 '03-'24 (448650JT) (JTR895.50) (CHAIN 428) BLACK COLOR, ProX

REAR SPROCKET 4486 50 STEEL ULTRALITE KTM SX 85 / 105 '03-'24 (448650JT) (JTR895.50) (CHAIN 428) BLACK COLOR, ProX

Regular price $43.96 USD

Regular price Sale price $43.96 USD
Unit price per
REAR SPROCKET 4552 45 ALUMINUM KTM SX 60 / 65 '97-'25, HUSQVARNA TC 65 '17-'23, GAS GAS MC 65 '21-'25 (455245) (JTR894.45) (CHAIN 420), ProX

REAR SPROCKET 4552 45 ALUMINUM KTM SX 60 / 65 '97-'25, HUSQVARNA TC 65 '17-'23, GAS GAS MC 65 '21-'25 (455245) (JTR894.45) (CHAIN 420), ProX

Regular price $50.66 USD

Regular price Sale price $50.66 USD
Unit price per
REAR SPROCKET 4552 47 ALUMINUM KTM SX 60 / 65 '97-'25, HUSQVARNA TC 65 '17-'23, GAS GAS MC 65 '21-'25 (455247) (JTR894.47) (CHAIN 420), ProX

REAR SPROCKET 4552 47 ALUMINUM KTM SX 60 / 65 '97-'25, HUSQVARNA TC 65 '17-'23, GAS GAS MC 65 '21-'25 (455247) (JTR894.47) (CHAIN 420), ProX

Regular price $50.66 USD

Regular price Sale price $50.66 USD
Unit price per
REAR SPROCKET 4552 48 ALUMINUM KTM SX 60 / 65 '97-'25, HUSQVARNA TC 65 '17-'23, GAS GAS MC 65 '21-'25 (455248) (JTR894.48) (CHAIN 420), ProX

REAR SPROCKET 4552 48 ALUMINUM KTM SX 60 / 65 '97-'25, HUSQVARNA TC 65 '17-'23, GAS GAS MC 65 '21-'25 (455248) (JTR894.48) (CHAIN 420), ProX

Regular price $50.66 USD

Regular price Sale price $50.66 USD
Unit price per
REAR SPROCKET 4552 49 ALUMINUM KTM SX 60 / 65 '97-'25, HUSQVARNA TC 65 '17-'23, GAS GAS MC 65 '21-'25 (455249) (JTR894.49) (CHAIN 420), ProX

REAR SPROCKET 4552 49 ALUMINUM KTM SX 60 / 65 '97-'25, HUSQVARNA TC 65 '17-'23, GAS GAS MC 65 '21-'25 (455249) (JTR894.49) (CHAIN 420), ProX

Regular price $50.66 USD

Regular price Sale price $50.66 USD
Unit price per
REAR SPROCKET 4552 50 ALUMINUM KTM SX 60 / 65 '97-'25, HUSQVARNA TC 65 '17-'23, GAS GAS MC 65 '21-'25 (455250) (JTR894.50) (CHAIN 420), ProX

REAR SPROCKET 4552 50 ALUMINUM KTM SX 60 / 65 '97-'25, HUSQVARNA TC 65 '17-'23, GAS GAS MC 65 '21-'25 (455250) (JTR894.50) (CHAIN 420), ProX

Regular price $50.66 USD

Regular price Sale price $50.66 USD
Unit price per