AS3 Performance high - pressure radiator caps are a must - have for serious racers. They're designed to stop coolant loss from radiators when the engine runs hot. This helps keep your bike going strong and gets you to the finish line. Be aware that long - term high - temperature running can harm the engine.
**Will Fit**:
- 2021 - 2022 Gas Gas MC 85
- 2021 - 2022 Gas Gas MC 125
- 2022 Gas Gas MC 250
- 2021 - 2022 Gas Gas EC 250
- 2021 - 2022 Gas Gas EC 300
- 2022 Gas Gas EX 250
- 2021 - 2022 Gas Gas EX 300
- 2021 - 2022 Gas Gas MC 250 F
- 2021 - 2022 Gas Gas EC 250 F
- 2021 - 2022 Gas Gas EX 250 F
- 2022 Gas Gas MC 350 F
- 2021 - 2022 Gas Gas EC 350 F
- 2021 - 2022 Gas Gas EX 350 F
- 2021 - 2022 Gas Gas MC 450 F
- 2021 - 2022 Gas Gas EX 450 F
**Features**:
- Stops coolant overflow at high temperatures.
- Withstands more pressure than standard caps.
- Fits all Honda radiators without modifications.
- Has a polished aluminium finish with AS3 Performance branding.
- Made by a UK company with a 12 - month warranty.
- You'll get the exact cap shown in the picture.

Using this AS3 Performance high - pressure radiator cap is easy. First, make sure your engine is cool. Then, remove the old radiator cap and replace it with this one. Just twist it on tightly. When your bike is running, especially at high temperatures, this cap will prevent coolant from overflowing, so you don't have to worry about losing coolant.
Here are some things to keep in mind. Avoid running your engine at high temperatures for too long as it can still damage the engine. Also, if you notice any signs of coolant leakage around the cap, check if it's tightened properly.
For maintenance, you don't need to do much. Every few months, take a look at the cap. Check for any signs of wear or damage. If you see anything wrong, it might be time to replace the cap. Since it comes with a 12 - month warranty from the UK company, if there are any issues within that time, you can reach out for support.