Monza Fuel Cap Seal 2". than Rubber or Silicon against Ethanol Fuels. & Necks 2" & 2.5". The Seals are made from Nitrile which is better.
Monza Cap Seal, Monza Cap 2" Seal, Petrol Cap Seal, BSA, Triton, Norton, Yamaha
Monza Fuel Cap Seal 2.5", Monza Seal, Oil Filler Cap Seal, Norton BSA Triton AJS
Monza Fuel Cap, Filler Cap Seal 2" Monza Seal, Oil Filler Cap, Norton BSA Triton
Monza Cap, Manx Norton, BSA, Triumph, Fuel Cap, Filler Cap, 2" Petrol Tank Cap,
NORTON / TRITON / CAFE RACER FEATHERBED SLIMLINE OIL TANK With Monza Cap
Yamaha TZ Aluminium Racing Fuel Tank with Monza Cap 22.5 litre Classic racer