Collection: KTM 125 SX Parts & Spares

Shop our range of KTM 125 SX parts and spares for maintenance, engine rebuilds and motocross competition. Browse replacement and performance parts for KTM 125cc 2-stroke motocross bikes, including pistons and engine components, clutch parts, suspension, brakes, exhaust, drivetrain and service parts.

CYLINDER KIT 16-17 KTM 125 SX 54mm, CYLINDER WORKS CW50014K01 50430038100 50530038000

CYLINDER KIT 16-17 KTM 125 SX 54mm, CYLINDER WORKS CW50014K01 50430038100 50530038000

Regular price £1,014.50 GBP

Regular price Sale price £1,014.50 GBP
Unit price per
PISTON KIT 52.4mm 2003-2019 HONDA MSX125 GROM MSX INNOVA WAVE 125

PISTON KIT 52.4mm 2003-2019 HONDA MSX125 GROM MSX INNOVA WAVE 125

Regular price £51.34 GBP

Regular price Sale price £51.34 GBP
Unit price per
CYLINDER KIT 52.40mm SILVER PISTON RING GASKET TOP END REBUILD KIT 2014-2021 HONDA GROM MSX125

CYLINDER KIT 52.40mm SILVER PISTON RING GASKET TOP END REBUILD KIT 2014-2021 HONDA GROM MSX125

Regular price £119.91 GBP

Regular price Sale price £119.91 GBP
Unit price per
STARTER MOTOR HONDA GROM125 MSX125 SUPER CUB ST125 DAX125 CT125 31210-K26-G01 31210-K1M-T01

STARTER MOTOR HONDA GROM125 MSX125 SUPER CUB ST125 DAX125 CT125 31210-K26-G01 31210-K1M-T01

Regular price £68.49 GBP

Regular price Sale price £68.49 GBP
Unit price per
CYLINDER BASE GASKET 0.50mm KTM 125 SX 23-24, ATHENA S410270006144

CYLINDER BASE GASKET 0.50mm KTM 125 SX 23-24, ATHENA S410270006144

Regular price £3.57 GBP

Regular price Sale price £3.57 GBP
Unit price per
RADIATOR HOSE Y KIT 3pcs BLACK 98-06 KTM SX125 SX200 50335026200

RADIATOR HOSE Y KIT 3pcs BLACK 98-06 KTM SX125 SX200 50335026200

Regular price £42.77 GBP

Regular price Sale price £42.77 GBP
Unit price per
CYLINDER KIT 52.40mm PISTON RING GASKET TOP END REBUILD 2014-2021 HONDA GROM MSX125

CYLINDER KIT 52.40mm PISTON RING GASKET TOP END REBUILD 2014-2021 HONDA GROM MSX125

Regular price £171.34 GBP

Regular price Sale price £171.34 GBP
Unit price per
AXP Racing Skid Plate 6 mm Black for KTM 125 SX 2023–2026 AX1668

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AXP Racing Skid Plate 6 mm Black for KTM 125 SX 2023–2026 AX1668

Regular price £77.50 GBP

Regular price Sale price £77.50 GBP
Unit price per

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Bar Mount Kit (PHDS Rubber) SX125 16-22 28.4 mm

Bar Mount Kit (PHDS Rubber) SX125 16-22 28.4 mm

Regular price £182.38 GBP

Regular price Sale price £182.38 GBP
Unit price per
V-Force (VF4) SX125 16-22 SX250 17-22 EXC250 17-22 EXC300 17-18

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V-Force (VF4) SX125 16-22 SX250 17-22 EXC250 17-22 EXC300 17-18

Regular price £174.86 GBP

Regular price Sale price £174.86 GBP
Unit price per

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V-Force (VF3) SX125 98-15

V-Force (VF3) SX125 98-15

Regular price £163.18 GBP

Regular price Sale price £163.18 GBP
Unit price per
V-Force (VF4) Replacement Petals YZ125 05-22 SX125 16-21 SX250 17-22 EXC250 17-22 EXC300 17-18

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V-Force (VF4) Replacement Petals YZ125 05-22 SX125 16-21 SX250 17-22 EXC250 17-22 EXC300 17-18

Regular price £62.38 GBP

Regular price Sale price £62.38 GBP
Unit price per

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V-Force (VF3) Replacement Petals SX125 00-15

V-Force (VF3) Replacement Petals SX125 00-15

Regular price £62.38 GBP

Regular price Sale price £62.38 GBP
Unit price per
Preload Adjuster SX125-525 08-10 (PDS)

Preload Adjuster SX125-525 08-10 (PDS)

Regular price £151.11 GBP

Regular price Sale price £151.11 GBP
Unit price per
Preload Adjuster SX125-525 11-15

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Preload Adjuster SX125-525 11-15

Regular price £151.11 GBP

Regular price Sale price £151.11 GBP
Unit price per

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Fresco Silencer (Carb) SX125 16-18/EXC125 17-18

Fresco Silencer (Carb) SX125 16-18/EXC125 17-18

Regular price £185.64 GBP

Regular price Sale price £185.64 GBP
Unit price per

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Collection: KTM 125 SX Parts & Spares

Shop KTM 125 SX by part type

CYLINDER KIT 16-17 KTM 125 SX 54mm, CYLINDER WORKS CW50014K01 50430038100 50530038000

CYLINDER KIT 16-17 KTM 125 SX 54mm, CYLINDER WORKS CW50014K01 50430038100 50530038000

PISTON KIT 52.4mm 2003-2019 HONDA MSX125 GROM MSX INNOVA WAVE 125

PISTON KIT 52.4mm 2003-2019 HONDA MSX125 GROM MSX INNOVA WAVE 125

CYLINDER KIT 52.40mm SILVER PISTON RING GASKET TOP END REBUILD KIT 2014-2021 HONDA GROM MSX125

CYLINDER KIT 52.40mm SILVER PISTON RING GASKET TOP END REBUILD KIT 2014-2021 HONDA GROM MSX125

STARTER MOTOR HONDA GROM125 MSX125 SUPER CUB ST125 DAX125 CT125 31210-K26-G01 31210-K1M-T01

STARTER MOTOR HONDA GROM125 MSX125 SUPER CUB ST125 DAX125 CT125 31210-K26-G01 31210-K1M-T01

CYLINDER BASE GASKET 0.50mm KTM 125 SX 23-24, ATHENA S410270006144

CYLINDER BASE GASKET 0.50mm KTM 125 SX 23-24, ATHENA S410270006144

RADIATOR HOSE Y KIT 3pcs BLACK 98-06 KTM SX125 SX200 50335026200

RADIATOR HOSE Y KIT 3pcs BLACK 98-06 KTM SX125 SX200 50335026200

CYLINDER KIT 52.40mm PISTON RING GASKET TOP END REBUILD 2014-2021 HONDA GROM MSX125

CYLINDER KIT 52.40mm PISTON RING GASKET TOP END REBUILD 2014-2021 HONDA GROM MSX125

AXP Racing Skid Plate 6 mm Black for KTM 125 SX 2023–2026 AX1668

AXP Racing Skid Plate 6 mm Black for KTM 125 SX 2023–2026 AX1668

Bar Mount Kit (PHDS Rubber) SX125 16-22 28.4 mm

Bar Mount Kit (PHDS Rubber) SX125 16-22 28.4 mm

V-Force (VF4) SX125 16-22 SX250 17-22 EXC250 17-22 EXC300 17-18

V-Force (VF4) SX125 16-22 SX250 17-22 EXC250 17-22 EXC300 17-18

V-Force (VF3) SX125 98-15

V-Force (VF3) SX125 98-15

V-Force (VF4) Replacement Petals YZ125 05-22 SX125 16-21 SX250 17-22 EXC250 17-22 EXC300 17-18

V-Force (VF4) Replacement Petals YZ125 05-22 SX125 16-21 SX250 17-22 EXC250 17-22 EXC300 17-18

V-Force (VF3) Replacement Petals SX125 00-15

V-Force (VF3) Replacement Petals SX125 00-15

Preload Adjuster SX125-525 08-10 (PDS)

Preload Adjuster SX125-525 08-10 (PDS)

Preload Adjuster SX125-525 11-15

Preload Adjuster SX125-525 11-15

Fresco Silencer (Carb) SX125 16-18/EXC125 17-18

Fresco Silencer (Carb) SX125 16-18/EXC125 17-18

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Collection: KTM 125 SX Parts & Spares

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