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.
Shop KTM 125 SX by part type
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2016-18 SX125 FACTORY FATTY, FMF 025183 FRONT EXHAUST
Regular price £339.57 GBPRegular priceUnit price / perSale price £339.57 GBP -
11-15 SX125 150 FATTY PIPE, FMF 025119 EXHAUST FRONT
Regular price £339.57 GBPRegular priceUnit price / perSale price £339.57 GBP -
11-15 SX125 150 FACTORY FATTY, FMF 025121 FRONT EXHAUST
Regular price £339.57 GBPRegular priceUnit price / perSale price £339.57 GBP -
04-10 SX125 144 150 FATTY PIPE, FMF 025073 FRONT EXHAUST
Regular price £339.57 GBPRegular priceUnit price / perSale price £339.57 GBP -
04-10 SX125 144 150 FACTORY, FMF 025076 FRONT EXHAUST PIPE
Regular price £339.57 GBPRegular priceUnit price / perSale price £339.57 GBP -
00-03 SX125 FATTY FRONT PIPE, FMF 025019 EXHAUST NICKEL
Regular price £339.57 GBPRegular priceUnit price / perSale price £339.57 GBPSold out -
WATER PUMP COVER 16-18 SX125 KTM, SUPERCOOLER BOYESEN WPK-41B, ORANGE
Regular price £237.72 GBPRegular priceUnit price / perSale price £237.72 GBP -
PROX HEAD & BASE GASKET SET, PROX 36.6223, KTM 125 SX 23-25, Husqvarna TE150i 2024-2025
Regular price £23.61 GBPRegular priceUnit price / perSale price £23.61 GBP -
REVOLVER 3 THROTTLE KIT GROM MSX 125 14-17, MOTION PRO 01-2961 HONDA MSX125, MP 01-2961 ROAD MC
Regular price £198.93 GBPRegular priceUnit price / perSale price £198.93 GBP -
TRANSMISSION BEARING KIT KTM 125 16-18, HOTRODS TBK0108, 2016 - 2018 KTM 125 SX BIKE, 2016 - 2018 KTM 150 SX
Regular price £128.50 GBPRegular priceUnit price / perSale price £128.50 GBP -
Wiseco GP Series Piston Kit 54.00 mm for KTM 125 SX 2001–2006 836M05400
Regular price £172.22 GBPRegular priceUnit price / perSale price £172.22 GBP -
PISTON KIT 07-18 KTM SX125 58, FORGEDWOSSNER 8220D400
Regular price £121.53 GBPRegular priceUnit price / perSale price £121.53 GBP -
PISTON KIT 07-18 KTM SX125 56, FORGEDWOSSNER 8220D200
Regular price £121.53 GBPRegular priceUnit price / perSale price £121.53 GBPSold out -
PISTON KIT 07-18 KTM SX125 54, FORGEDWOSSNER 8220DC
Regular price £111.48 GBPRegular priceUnit price / perSale price £111.48 GBP -
PLASTIC KIT/6 SX125-250 12 BLK, RTECH R-KITKTM-NR0-509
Regular price £105.48 GBPRegular priceUnit price / perSale price £105.48 GBP -
TRANSMISSION BEARING KIT KTM 125SX 20-22, HOTRODS HR00163
Regular price £126.34 GBPRegular priceUnit price / perSale price £126.34 GBPSold out