Apico Alloy Fuel Caps for trial bikes have a built-in breather and one-way valve to stop fuel leaking from the petrol tank. Available in various anodised colours to suit the bike manufacturer and Apico laser-etched logos. The Beta & TRS models come with an O-ring fuel seal as they would OEM. ALLOY FUEL CAP - RED OEM - 06001TR100 TRS ONE/GOLD/RR 125-300 16-24