These bayonet style gas caps (also known as cam gas caps) are vented and are chromed steel

are expertly adapted by JRC Engineering specifically for British motorcycles

Tuning and Jet Availability

and handlebars may cause interference when turning

and ease of installation

Chromed Steel Brake and Clutch Blade Levers Control Set for 1 inch Bars Subcategory_Carburetor Components These bayonet style gas capsThese blade style clutch and brake control levers fit 1" bars. They are set up for use with British style brake and clutch cables. These do not have any cable adjusters and were used on early bikes that had an adjustment for the cable by the transmission.