Shop dirt motorcycle parts, spares and accessories for a wide range of motocross, enduro and off-road bikes at Radhouse. Explore engine components, brakes, chains and sprockets, suspension, replacement plastics, controls and essential maintenance parts, with UK delivery.
Dirt motorcycles are built for demanding conditions, from motocross tracks and enduro trails to recreational off-road riding. Keeping your bike in good condition means having access to reliable replacement parts, regular maintenance essentials and components suited to your specific make and model.
At Radhouse, we offer a wide selection of dirt motorcycle parts, spares and accessories for popular motocross and enduro bikes, including Yamaha, Honda, KTM, Kawasaki and Suzuki models.
Our catalogue covers everything from engine parts, pistons and gaskets to braking components, chains and drivetrain parts, suspension components, replacement bodywork and plastics and fuel, air and cooling system parts.
Whether you're carrying out routine servicing, rebuilding an engine, replacing damaged components after a ride or preparing your motorcycle for the next event, you can explore our range by parts category, manufacturer or motorcycle model.
Our Shop By Model finder uses make, model and year information where available to help you narrow down compatible products. This is especially useful for dirt bikes, where components can vary between different generations, engine sizes and motocross or enduro variants.
From everyday maintenance to more involved repairs, Radhouse makes it easier to find the parts you need to keep your dirt motorcycle ready for the next ride.
Always check the individual product specifications and compatibility information before ordering. If you're unsure which component is right for your bike, contact us and we'll be happy to help.
Use the Radhouse Bike finder to select your motorcycle's manufacturer, model and year. You can also browse our dirt motorcycle categories for engine parts, brakes, suspension, drivetrain components and replacement plastics. Always check the product compatibility details before ordering, as parts can differ between model years and engine variants.
Motocross bikes are generally designed for closed-course racing, while enduro motorcycles are built for longer rides across varied terrain. Although some components may be shared, differences can include suspension settings, gearing, electrical equipment, fuel systems and bodywork. Parts aren't always interchangeable, even between bikes from the same manufacturer.
Replacement intervals depend on riding conditions, maintenance and wear. Mud, sand and frequent off-road riding can accelerate drivetrain wear. Regularly inspect your chain for stretching, tight spots and damaged links, and check sprocket teeth for excessive wear. Chains and sprockets are often best replaced together when worn to avoid premature deterioration of new components.
Not necessarily. Dirt motorcycle plastics can vary significantly between model years, even when the manufacturer and model name remain unchanged. Radiator shrouds, mudguards, side panels and number plates may have different mounting points or shapes. Always check the specific year range and compatibility information before ordering replacement bodywork.
Common maintenance items include air filters, spark plugs, brake pads, chains, sprockets, wheel bearings, fork seals and engine servicing components. Maintenance requirements vary depending on whether your bike is two-stroke or four-stroke, how frequently you ride and the conditions you encounter. Follow your motorcycle manufacturer's recommended service schedule.
Some components, such as certain brake, suspension or chassis parts, may be shared between related models. However, engine components, exhaust systems, fuel-system parts and many servicing items are usually different. Even when two motorcycles have the same engine capacity, you should never assume their parts are interchangeable without checking the exact specifications.
Titanium intake valve for Triumph TF 450-RC, TF 450-E and TF 450-C models. ProX part number 28.7425-2, intended for intake valve position and cross-referenced to OEM part number T1132133. Features Replacement intake valve Suitable for Triumph TF 450-RC models Suitable for Triumph TF 450-E models Suitable for Triumph TF 450-C models Specifications Outside diameter: 39.25 mm Length: 85.60 mm Stem diameter: 5.97 mm Valve position: Intake Material: Titanium Manufacturer part number: 28.7425-2 OEM reference number: T1132133 Cross-Reference OEM Part Numbers T1132133 Vehicle Fitments Triumph TF 450-RC 2025-2025 Triumph TF 450-E 2025-2026 Triumph TF 450-C 2026-2026
£118.53
Titanium exhaust valve for Triumph TF 450-RC, TF 450-E and TF 450-C models. ProX part number 28.7425-1, intended for the exhaust valve position and cross-referenced to OEM part number T1132132. Features Replacement exhaust valve Suitable for Triumph TF 450-RC models Suitable for Triumph TF 450-E models Suitable for Triumph TF 450-C models Specifications Outside diameter: 34.55 mm Length: 85.20 mm Stem diameter: 5.95 mm Valve position: Exhaust Material: Titanium Manufacturer part number: 28.7425-1 OEM reference number: T1132132 Cross-Reference OEM Part Numbers T1132132 Vehicle Fitments Triumph TF 450-RC 2025-2025 Triumph TF 450-E 2025-2026 Triumph TF 450-C 2026-2026
£118.53
Titanium exhaust valve for Triumph TF 250-X, TF 250-E and TF 250-C models. ProX part number 28.7324-1, intended for the exhaust valve position and cross-referenced to OEM part number T1139985. Features Replacement exhaust valve Suitable for Triumph TF 250-X models Suitable for Triumph TF 250-E models Suitable for Triumph TF 250-C models Specifications Outside diameter: 26.80 mm Length: 98.40 mm Stem diameter: 4.97 mm Valve position: Exhaust Material: Titanium Manufacturer part number: 28.7324-1 OEM reference number: T1139985 Cross-Reference OEM Part Numbers T1139985 Vehicle Fitments Triumph TF 250-X 2024-2026 Triumph TF 250-E 2025-2026 Triumph TF 250-C 2026-2026
£109.47
Forged piston kit for selected KTM, Husqvarna and GASGAS 250 cc four-stroke motorcycles from 2023 to 2027. This Athena piston kit is designed for the specified 249.92 cc engine applications and provides the piston, ring and pin configuration required for compatible engine rebuilds and maintenance. Specifications Piston size: 80.96 mm Nominal size: 81 mm Piston type: Forged Compression height: 19.50 mm Compression ratio: 14.5:1 Displacement: 249.92 cc Number of piston rings: 2 Piston pin type: Standard Big-end pin diameter specification: 16 x 8.5 x 38.2 mm Cross-Reference OEM Part Numbers Athena: S5F08100001A Vehicle Fitments GASGAS EC-F 250 cc: 2024–2025 GASGAS EX-F 250 cc: 2024–2025 GASGAS MC-F 250 cc: 2024–2027 Husqvarna FC 250 cc: 2023–2027 Husqvarna FE 250 cc: 2024–2027 KTM EXC-F 250 cc: 2024–2027 KTM SX-F 250 cc: 2023–2027 KTM XC-F 250 cc: 2023–2027
£196.93
Standard bore cylinder kit with gaskets for 250 cc applications, designed for KTM EXC-F and SX-F models. Supplied with an 81 mm cylinder and gasket set. Piston not included. Features Standard bore cylinder kit Supplied with gaskets Suitable for 250 cc applications Piston not included Specifications Bore diameter: 81 mm Capacity: 250 cc Vehicle Fitments KTM EXC-F 250 cc 2024–2026 KTM SX-F 250 cc 2023–2026
£452.93
Big bore cylinder kit for the Yamaha YZ-F 250 cc from 2025 to 2026, designed to increase engine displacement to 304.15 cc and provide increased torque and power throughout the RPM range while retaining the motorcycle’s agility and responsiveness. The kit combines an oversized cylinder and forged piston assembly with the pre-calibrated GET Boost electronic module, providing the components required for the increased-capacity engine configuration. Features High-grade cylinder with oversized steel liner Forged performance piston supplied with pin and rings Includes all necessary gaskets GET Boost electronic module included GET Boost is pre-calibrated specifically for the big bore configuration Installs without ECU or wiring modifications Dedicated harness connects directly to the injector and throttle body Pre-mapped power curve for safe and reliable operation with the new cylinder Developed using experience from MXGP and AMA racing Designed for smooth, progressive power delivery across the RPM range MLS head gasket provides combustion sealing and long-term durability Specifications Bore diameter: 85.00 mm Bore gain: +8 mm Compression ratio: 13.3:1 Displacement: 304.15 cc Cylinder material: high-silicon aluminium alloy Cylinder liner: steel Liner construction: proprietary co-casting process Piston: forged and CNC-machined Piston coating: molybdenum disulphide Piston pin coating: DLC Head gasket type: MLS (Multi-Layer Steel) Head gasket material: laser-cut stainless steel Cross-Reference OEM Part Numbers Athena: P400485100112 Vehicle Fitments Yamaha YZ-F 250 cc: 2025–2026
£726.00
Standard replacement cylinder for Yamaha YZ 250 two-stroke models, supplied as a cylinder only. This standard-size cylinder is intended as a direct replacement component for engine rebuild or repair on compatible motorcycles. Features Replacement standard cylinder Cylinder only Suitable for engine repair or rebuild Direct replacement for compatible Yamaha YZ 250 models Specifications Standard size Bore: 66.40 mm Engine type: 2-stroke Cross-Reference OEM Part Numbers 5UP-11311-21 Vehicle Fitments Yamaha YZ 250 1999-2025
£468.30
Exhaust muffler gasket for selected Yamaha WR-F, YZ-F and YZ-FX 250 cc and 450 cc motorcycles, designed to seal the exhaust connection and help prevent exhaust gas leakage at the muffler joint. This Athena gasket is suitable as a replacement component for the specified applications and cross-references the corresponding Yamaha OEM part number. Specifications External diameter: 54.00 mm Internal diameter: 49.00 mm Height: 30.00 mm Cross-Reference OEM Part Numbers Athena: S410485012075 Yamaha: 1SL-14714-00-00 Vehicle Fitments Yamaha WR-F 250 cc: 2015–2026 Yamaha WR-F 450 cc: 2016–2026 Yamaha YZ-F 250 cc: 2014–2027 Yamaha YZ-F 450 cc: 2014–2027 Yamaha YZ-FX 250 cc: 2015–2027 Yamaha YZ-FX 450 cc: 2016–2027
£32.67
Exhaust muffler gasket for selected Yamaha WR-F, YZ-F and YZ-FX 250 cc motorcycles, designed to seal the exhaust connection and help prevent exhaust gas leakage at the muffler joint. This Athena gasket is suitable as a replacement component for the specified applications and cross-references the corresponding Yamaha OEM part number. Specifications External diameter: 40.70 mm Internal diameter: 35.00 mm Height: 30.00 mm Cross-Reference OEM Part Numbers Athena: S410485012074 Yamaha: 19D-14755-00-00 Vehicle Fitments Yamaha WR-F 250 cc: 2019–2026 Yamaha YZ-F 250 cc: 2020–2026 Yamaha YZ-FX 250 cc: 2020–2027
£21.20
Exhaust muffler gasket for selected Honda CBR and CRF motorcycles, designed to seal the exhaust connection and help prevent exhaust gas leakage at the muffler joint. This Athena gasket is suitable as a replacement component for the specified applications and cross-references the corresponding Honda OEM part number. Specifications External diameter: 58.00 mm Internal diameter: 48.70 mm Height: 11.00 mm Cross-Reference OEM Part Numbers Athena: S410210012097 Honda: 18392-MEL-000 Vehicle Fitments Honda CBR RR 1000 cc: 2004–2007 Honda CRF R 250 cc: 2022–2026 Honda CRF RX 250 cc: 2022–2026 Honda CRF RX 300 cc: 2022–2026
£31.07
Exhaust muffler gasket for Honda CRF F 110 and CRF F 125 motorcycles from 2019 to 2026, designed to seal the exhaust connection and help prevent gas leakage at the muffler joint. This Athena gasket is suitable as a direct replacement for the specified applications. Specifications External diameter: 28.00 mm Internal diameter: 22.50 mm Height: 25.00 mm Cross-Reference OEM Part Numbers Athena: S410210012096 18391-K28-A60 Vehicle Fitments Honda CRF F 110 cc: 2019–2026 Honda CRF F 125 cc: 2019–2026
£17.73
This connecting rod rebuild kit is a replacement assembly for Yamaha YZ125 models from 2005 to 2019. It is supplied as a complete conrod kit including the rod, crankpin, crankpin bearing, top end bearing and thrust washers where required, and is intended for use with both aftermarket and OE crankshafts. Specifications Material: SNCM220 Certified chrome alloy steel rod construction Crankpin manufactured from hot-rolled ASTM steel Crankpin case hardened Thrust washers manufactured from bronze phosphor Thrust washers silver coated Centre to centre: 102 mm Small end bearing: 15 x 19 x 17.2 mm Small end bore Ø: 19 mm Small end width: 17 mm Big end bearing: 22 x 29 x 16.0 mm Big end bore Ø: 29 mm Big end width: 16 mm Big end pin Ø: 22 mm Big end pin length: 54.20 mm Washer thickness: 22 x 34.5 x 1.50 mm Cross-Reference OEM Part Numbers RX-40016, MX-09084 HOT RODS 8629 WOSSNER P2018 RY-2205 1C3-11650-00-00, 1C3-11651-00-00, 3JD-11681-10-00, 90209-22326-00, 93310-52238-00, 93310-21510-00, 1C3-11651-00-00M Vehicle Fitments Yamaha YZ125 (2005-2019) Vehicle Compatibility Please check the exact model and year before ordering. Manufacturer Model Years GAS-GAS EC 300 2000-2015 YAMAHA YZ X 125 2020-2021 YAMAHA YZ 125 2005-2018 YAMAHA YZ 125 2005-2021 YAMAHA YZ 125 2005-2020 YAMAHA YZ X 125 2020 YAMAHA YZ 125 2005-2019 YAMAHA YZ 125 2005-2016 YAMAHA YZ 125 2005-2015
£148.93
Replacement pre-cut number plate decal set designed for motocross and enduro use. Constructed with 0.5mm thick laminated material and a strong adhesive for durability. Specifications Pre-cut number plate background set suitable for motocross and enduro use 0.5mm thick laminated material with strong adhesive All decals are screen-printed Part Number 46-956.YE Vehicle Fitments BETA RR 2T 2020 - 2024 BETA RR 4T 2020 - 2024
£27.47
Replacement pre-cut number plate decal set designed for motocross and enduro use. Constructed with 0.5mm thick laminated material and a strong adhesive for durability. Specifications Pre-cut number plate background set suitable for motocross and enduro use 0.5mm thick laminated material with strong adhesive All decals are screen-printed Part Number 46-956.WH Vehicle Fitments BETA RR 2T 2020 - 2024 BETA RR 4T 2020 - 2024
£29.54
Replacement pre-cut number plate decal set designed for motocross and enduro use. Constructed with 0.5mm thick laminated material and a strong adhesive for durability. Specifications Pre-cut number plate background set suitable for motocross and enduro use 0.5mm thick laminated material with strong adhesive All decals are screen-printed Part Number 46-956.RD Vehicle Fitments BETA RR 2T 2020 - 2024 BETA RR 4T 2020 - 2024
£27.47
Replacement pre-cut number plate decal set designed for motocross and enduro use. Constructed with 0.5mm thick laminated material and a strong adhesive for durability. Specifications Pre-cut number plate background set suitable for motocross and enduro use 0.5mm thick laminated material with strong adhesive All decals are screen-printed Part Number 46-956.GN Vehicle Fitments BETA RR 2T 2020 - 2024 BETA RR 4T 2020 - 2024
£27.47
Replacement pre-cut number plate decal set designed for motocross and enduro use. Constructed with 0.5mm thick laminated material and a strong adhesive for durability. Specifications Pre-cut number plate background set suitable for motocross and enduro use 0.5mm thick laminated material with strong adhesive All decals are screen-printed Part Number 46-956.BL Vehicle Fitments BETA RR 2T 2020 - 2024 BETA RR 4T 2020 - 2024
£27.47
Replacement pre-cut number plate decal set designed for motocross and enduro use. Constructed with 0.5mm thick laminated material and a strong adhesive for durability. Specifications Pre-cut number plate background set suitable for motocross and enduro use 0.5mm thick laminated material with strong adhesive All decals are screen-printed Part Number 46-956.BK Vehicle Fitments BETA RR 2T 2020 - 2024 BETA RR 4T 2020 - 2024
£27.47
Replacement pre-cut number plate decal set designed for motocross and enduro use. Constructed with 0.5mm thick laminated material and a strong adhesive for durability. Specifications Pre-cut number plate background set suitable for motocross and enduro use 0.5mm thick laminated material with strong adhesive All decals are screen-printed Part Number 46-880.WE.B Vehicle Fitments KTM FREERIDE 2012-2023
£29.33
This set of four motorcycle LED turn signal lights is designed for front and rear indicator use on motorcycles with bolt-mounted signal fittings. It provides amber flashing direction indication for replacement, repair, or custom installation where compact 12V LED indicators are required. Features Suitable for front and rear motorcycle indicator applications Provides amber turn signalling Intended for replacement or custom-installed indicator setups Universal-style design for a range of motorcycles with bolt-mounted fittings Specifications Light source: LED LED configuration: 3 SMD beads per light Operating voltage: DC 12V Mounting bolt size: M8 (8 mm) Housing material: ABS plastic Housing colour: black Kit Contents 4 motorcycle turn lights
£33.54
This electronic flasher relay unit controls the flashing of motorcycle direction indicators. It is a replacement unit for the KTM models and years listed below. Specifications Voltage: 12 V Type: electronic transistor Terminals: 3 Load: 2 × 3 W + 0.25 W Earth connection: yes Cross-Reference OEM Part Numbers DZE: DES 9359 KTM: 90511030000 Bajaj: JG 40 2002 L90511930000 Vehicle Fitments KTM Duke 125 (2014-2019) RC 125 (2014-2020) Duke 200 (2014-2021) RC 200 (2014-2021) Adventure 250 (2021 onwards) Duke 250 (2015-2021) RC 250 (2015-2017) Adventure 390 (2020 onwards) Duke 390 (2014-2021) RC 390 (2014-2021)
£29.94
Athena complete gasket set for Ducati Desmo 450 MX motorcycles with 449.6 cc engine capacity, suitable for 2026 model year applications. This set, supplied under part number P400110900067, includes all gaskets and seals required for complete engine rebuilds, matches OEM off-road engine specifications, is designed for extreme and prolonged operating conditions, and was developed with factory teams in MXGP and AMA. Features Complete gasket set Includes all gaskets and seals for complete engine rebuilds Matches OEM off-road engine specifications Designed for extreme and prolonged conditions Developed with factory teams in MXGP and AMA Specifications Manufacturer: Athena Part number: P400110900067 Engine capacity: 449.6 cc Model year: 2026 Vehicle Fitments Ducati Desmo 450 MX 449.6 cc 2026
£182.03
TWIN AIR WASH COVER FOR POWERFLOW KIT 160140 Honda CRF 250 R 2025 CRF 250 RWE 2025 CRF 250 RX 2025 CRF 450 R 2025 CRF 450 RWE 2025 CRF 450 RX 2025 Honda CRF 450R 2021 Air Box Cover For PowerFlow Kit 150234C Prevents water and cleansers from entering your intake when you clean your airbox Tough, durable ABS plastic with a rubber sealing ring to ensure a perfect, leak-free fit. Part No. 15-0140.TA (radhouse.co.uk)
£36.81
TWIN AIR WASH COVER 160132 Honda CRF 250 R 2025 CRF 250 RWE 2025 CRF 250 RX 2025 CRF 450 R 2025 CRF 450 RWE 2025 CRF 450 RX 2025 Prevents water and cleansers from entering your intake when you clean your airbox Tough, durable ABS plastic with a rubber sealing ring to ensure a perfect, leak-free fit. Part No. 15-0132.TA (radhouse.co.uk)
£36.06
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