The Bike-It Valve Extenders are the perfect solution for those hard to reach tyre valves.Valve Extender options:90° Chrome Plated90° Gold ColouredHeavy Duty Braided Flexi ExtenderThe Bike-It Valve Extenders simply screw to the end of the existing tyre valve to eliminate scuffed or cut knuckles next time your try to check or inflate your tyres pressures.8.3mm diameter tyre valves are suitable for European and older motorcycles while the 11.3mm diameter tyre valves are suitable for all later Japanese motorcycles.