Pro-One pop-up gas cap
PRO-ONE's pop-up gas cap assembly features a steel bung designed to be welded into steel gas tanks. Once installed the aluminium gas cap fits flush with the top of the tank. It is suitable for any custom steel tank, and the company says that it is "very popular with custom bike builders for a clean look."
The cap’s diameter is 1.910in and the bung’s outside diameter is 2.145in. Pop-up gas cap can only be used with a vented gas tank.
PRO-ONE PERFORMANCE PRODUCTS
Azusa, California, USA
Tel: 800 884 4173