RFX Sport Plastic Throttle Sleeve KTM/Husq 85-450 >26
Part no. FXTS 50400 00WT
The RFX Sport Plastic Throttle Sleeve KTM/Husq 85-450 >26 from RFX is listed to fit 44 models from Husqvarna, GasGas and KTM, including Husqvarna FC 250 (FC250) 2016-2027, Husqvarna FC 350 (FC350) 2016-2027 and Husqvarna FC 450 (FC450) 2016-2027. It is part of our throttle control range.
- Part number: FXTS 50400 00WT
- Colour: White
- Fits Husqvarna: FC 250 (FC250) 2016-2027, FC 350 (FC350) 2016-2027, FC 450 (FC450) 2016-2027, FE 250 (FE250) 2017-2027, FE 350 (FE350) 2017-2024, 2026-2027, FE 450 (FE450) 2017-2024, 2026-2027, FE 501 (FE501) 2017-2024, 2026-2027, TC 125 (TC125) 2017-2027 and 8 more
- Fits GasGas: EC 250 (EC250) 2021-2024, 2026, EC 250 F (EC250F) 2021-2024, 2026, EC 300 (EC300) 2026, EC 350 F (EC350F) 2021-2024, 2026, EC 450 F (EC450F) 2026, EC 500 F (EC500F) 2026, MC 125 (MC125) 2021-2027, MC 150 (MC150) 2025-2026 and 6 more
- Fits KTM: 125 SX 2017-2027, 150 SX 2017-2026, 250 EXC 2017-2023, 250 EXC-F 2017-2023, 2026-2027, 250 SX 2017-2027, 250 SX-F 2016-2027, 300 EXC 2017-2023, 2026-2027, 300 SX 2023-2027 and 6 more
- Category: Vehicle Parts › Controls › Throttle Control
Specifications
| Brand | RFX |
|---|---|
| Manufacturer Item No. | FXTS 50400 00WT |
Fits these bikes
This RFX part is listed as fitting 44 models. Check your model and year below.
| Make | Model | Years |
|---|---|---|
| GasGas | EC 250 (EC250) | 2021-2024, 2026 |
| GasGas | EC 250 F (EC250F) | 2021-2024, 2026 |
| GasGas | EC 300 (EC300) | 2026 |
| GasGas | EC 350 F (EC350F) | 2021-2024, 2026 |
| GasGas | EC 450 F (EC450F) | 2026 |
| GasGas | EC 500 F (EC500F) | 2026 |
| GasGas | MC 125 (MC125) | 2021-2027 |
| GasGas | MC 150 (MC150) | 2025-2026 |
| GasGas | MC 250 (MC250) | 2022-2026 |
| GasGas | MC 250 F (MC250F) | 2021-2027 |
| GasGas | MC 300 (MC300) | 2025 |
| GasGas | MC 350 F (MC350F) | 2023-2026 |
| GasGas | MC 450 F (MC450F) | 2021-2027 |
| GasGas | MC 85 (MC85) | 2021-2023 |
| Husqvarna | FC 250 (FC250) | 2016-2027 |
| Husqvarna | FC 350 (FC350) | 2016-2027 |
| Husqvarna | FC 450 (FC450) | 2016-2027 |
| Husqvarna | FE 250 (FE250) | 2017-2027 |
| Husqvarna | FE 350 (FE350) | 2017-2024, 2026-2027 |
| Husqvarna | FE 450 (FE450) | 2017-2024, 2026-2027 |
| Husqvarna | FE 501 (FE501) | 2017-2024, 2026-2027 |
| Husqvarna | TC 125 (TC125) | 2017-2027 |
| Husqvarna | TC 150 (TC150) | 2025-2026 |
| Husqvarna | TC 250 (TC250) | 2017-2027 |
| Husqvarna | TC 300 (TC300) | 2025-2027 |
| Husqvarna | TC 85 (TC85) | 2018-2023 |
| Husqvarna | TE 125 (TE125) | 2025-2027 |
| Husqvarna | TE 150 (TE150) | 2020-2027 |
| Husqvarna | TE 250 (TE250) | 2018-2027 |
| Husqvarna | TE 300 (TE300) | 2018-2027 |
| KTM | 125 SX | 2017-2027 |
| KTM | 150 SX | 2017-2026 |
| KTM | 250 EXC | 2017-2023 |
| KTM | 250 EXC-F | 2017-2023, 2026-2027 |
| KTM | 250 SX | 2017-2027 |
| KTM | 250 SX-F | 2016-2027 |
| KTM | 300 EXC | 2017-2023, 2026-2027 |
| KTM | 300 SX | 2023-2027 |
| KTM | 350 EXC-F | 2017-2023, 2026-2027 |
| KTM | 350 SX-F | 2016-2027 |
| KTM | 450 EXC-F | 2017-2023, 2026-2027 |
| KTM | 450 SX-F | 2016-2027 |
| KTM | 500 EXC-F | 2026-2027 |
| KTM | 85 SX | 2018-2023 |
Product details
RFX Sport Series Throttle Sleeves are an affordable way to replace your OEM throttle tube without losing performance. They are made from Teflon coated nylon fabric, which gives a smooth throttle action and, unlike aluminium tubes, is kind to your handlebars.
Each sleeve is built as a direct OEM replacement, using an identical cam profile for accurate throttle control, and has an open end so it can be used with aluminium handguards. They suit all the popular off-road bikes and are an affordable, dependable choice.
Key features
- Replacement throttle tubes to suit all the popular off-road bikes
- Same cam profile as the OEM part, so throttle control is correct
- Teflon coated nylon fabric for a smooth action
- Will not mark or scar your bars the way aluminium tubes can
- Open end design, so aluminium handguards can be fitted if you need them
Fitting instructions
- Push the rubber boot down, take the throttle housing apart and remove the old throttle tube without damaging the throttle cables.
- If needed, carefully take the grip off the old throttle tube.
- Check the cables and housing for heavy damage or wear. Clean and lubricate them, or replace them if necessary.
- Clean the handlebar and check it for damage where the old tube has been turning on it. If you find a ridge, replace the handlebars.
- Fit the new throttle tube onto the handlebar and lubricate it with a penetrating lubricant, ideally Maxima MPPL. Do not use grease: it attracts dirt and causes the throttle to stick before long.
- Put the throttle cables and housing back together, again using a little penetrating lubricant.
- Position the throttle housing correctly on the handlebars and tighten it.
- Set the cable free play to suit your preference.
- Turn the handlebars fully to each side to confirm the throttle works properly and the cable routing is correct. The cable may need a little more adjustment.
- Refit the rubber boot so it covers the housing.
- Cover the hole at the grip's end with electrical tape so no glue gets into the throttle barrel, then spread a little RFX grip glue around the outside of the throttle tube at its outer end.
- Put a little RFX grip glue inside the new grip and slide it onto the tube.
- Twist the grip into the right position and let it dry.
- Fit RFX safety grip wire if required.
- Once the glue has dried, check once more that the throttle operates correctly.
Questions about this part
Will the RFX Sport Plastic Throttle Sleeve KTM/Husq 85-450 >26 fit my bike?
It is listed for 44 models, including GasGas EC 250 (2021-2024, 2026), GasGas EC 250 F (2021-2024, 2026), GasGas EC 300 (2026), GasGas EC 350 F (2021-2024, 2026). The full list is in the "Fits these bikes" table on this page, and the fit check next to the price tells you straight away for your saved bike.
What is the part number?
The manufacturer part number is FXTS 50400 00WT. Our stock code is 110525-WHI.
How much is delivery?
Order before 3pm for same day dispatch. UK Next Day delivery is £7.99, and free on orders of £100 or more. Pre 12:00 (£9.99) and Pre 10:00 (£14.99) upgrades are charged at any order value.
Can I return it?
Yes. You can return it within 30 days of delivery for a refund. You pay the return postage unless the item is faulty, damaged or wrong, in which case we cover it. See our Returns page for how. Returns