AS3 Performance high-pressure radiator caps are a must - have for serious racers. They stop coolant loss from radiators when the engine runs hot, keeping your bike in top - shape and helping you cross the finish line. The longer the engine runs at high temperatures, the more damage it can cause, so this cap is your engine's best friend.
**Will Fit**:
- 2021 Rieju MR 300 Racing
- 2021 Rieju MR 300 Pro
**Features**:
- Stops coolant overflow during high - temperature runs.
- Withstands more pressure than standard caps.
- Fits all Rieju MR 300 radiators without any modifications.
- Has a polished aluminium finish with AS3 Performance branding.
- Comes from a UK company and has a 12 - month warranty.
- The cap you see in the picture is exactly what you'll get.
Using this AS3 Performance radiator cap is easy. Just remove the old cap from your 2021 Rieju MR 300 radiator and replace it with this high - pressure one. It's designed to fit right in without any adjustments.
When using your bike, remember that the longer the engine runs at high temperatures, the more strain it puts on the system. This cap helps prevent coolant loss, but it's still a good idea to keep an eye on your engine temperature.
For maintenance, you don't need to do much. Every now and then, check the cap for any signs of damage or wear. If you notice any issues, contact the UK company for support as it comes with a 12 - month warranty. And that's it - enjoy a worry - free ride with this great radiator cap.
