BSA A65 inlaat klep 1966-72 ,68-0665
A65, Lightning, Hornet (1966-67), Thunderbolt Spitfire Mk2 (1966-69)
and A65 (1971-72), Inlet Valve (Alpha valve no.V253)
Head Diameter: 1.598
Stem Diameter: 0.3105
Length: 3.600