Montesa 4rt Fuel Cap CSP

- CNC machined from solid part
- The breathe valve system inside the cap is designed to remove the outer tube
- A detail of racing style on your bike
- Made of 2011 aluminum alloy, 6026 aluminum alloy and thermoplastic polymer
- One way valve system inside the cap to let air into the tank and to stop fuel escaping.

Note: Does not come with a seal so the original seal needs to be used.