Spruce your vintage Triumph or BSA dual carb twin by installing a new K&N air filter assembly! This air filter is made in the USA and is ready to be installed. Comes complete with clamp, front and back plate, reusable filter and K&N stickers…

Air filter backing plate is chrome with the “K&N” logo stamped on the center. Measures 4 1/2″ in diameter by 2″ wide – inlet hole is offset. Opening measures approx 43mm (can stretch). Fits on the back end of an Amal Concentric carb (928, 930 & 932) carbs on Triumph & BSA models.

This K&N air filter may fit Mikuni carbs but please check the measurements as described above. Check your parts book to ensure the best fitment.