Chrome plated brass fuel valve that allows the custom builder to attach the fuel lines directly to the gas tank; and route them to the fuel valve. The fuel valve can be remotely mounted anywhere on the bike; is equipped with 5/16" fuel hose fittings and an On/Off/Reserve setting. It can also be mounted directly to the bottom side of a custom gas tank when the tank is built. - Chrome plated brass - On/off/reserve - For in-line use; with 4 mount holes - For 5/16" (8mm) fuel hose - Dimensions: 1-1/2" (3.8cm) high x 2" (5.1cm) long x 1-3/8" (3.5cm) deep. Why a Pingel? If you need a petcock that is made without compromises; you''ll want a Pingel. Pingel petcocks are world famous for their gas guzzling capabilities and if you think you don''t need a high flow petcock... think again. With a regular petcock; when traveling at high speed; even with a stock engine; it can happen that your bike uses more fuel than a regular petcock can deliver. The engine sucks the float bowl dry; literally starving the engine. With High Performance Big Inch motors the problem increases. Pingel petcocks can supply the amount of fuel your engine needs to perform.