YOHO BUY Gas Cap Oil Vent Hose Tube For Motorcycle Motocross Pit Dirt Bike (Orange) Relieves pressure from gas tank . Protects from dirt getting into your gas tank. CNC machined Design for head and Quality Tube. The Short Pipe Allows For Easy Turning Of The Fuel Cap. The Fuel Tank Vent Tube Solves These Problems By Having Two-Way Valve That Lets Air In But Stops Fuel Coming Out.