RFX Short Type Fuel Tank Vent Tube with one way valve.\n\nYour fuel tank needs to let air in to replace the fuel that has been used. That's why your bike has a hose coming out the fuel cap & usually going into the head stock.\nThis makes removing & replacing the cap a bit of a pain, especially the screw on type.\nAlso as dirt bikes often end up on their side or even upside down its handy to not have the fuel pour out when this happens.\nThe RFX fuel tank vent tube solves these problems by having a one way valve that lets air in but stops fuel coming out. Also the short pipe allows for easy removing & refitting of the fuel cap.\nPlease note when it arrives the tubing may appear to be too small but it is designed to fit to a variety of different sized pipes, it might need immersed in boiling water for a minute to soften it enough before fitting, this way it will form a much tighter seal & be less likely to be lost during riding.\nCNC machined & colour anodised to evK