Radius properly to fit 18" tires as well as vintage-style 16" tires

- Bolt-On Installation: Easily mounts to the battery cover using the original trim’s 4 mounting holes

1/2" WW and 9/16" WW sockets

then black zinc coated

Fits 1966-1970 Triumph Motorcycles

1/4 inch BSP Petcock Fuel Valve Petcock Fuel Valve - Main - UK Made For Triumph BSA Norton Subcategory_Chain Conversion Kits Radius properly to fit 18"Vintage british motorcycles such as Triumph, BSA and Norton use fuel valves with 1 4 inch BSP (British Standard Parallel) threads. These reproduction petcocks are made in the UK and feature all metal internals and a cleanable fuel filter. This replacement petcock will replace the leaky, hard to turn, worn out petcock on your vintage motorcycle and give you trouble free performance. OEM part number is 83 2800, and was found on most Triumph 250, 500,