Fits BSA 4 spring models, B31,B32,B33,B44 (1958-), A7,A10 Swinging arm models (1958-62), A50,A65 (1966-72) 

Triumph Twin cylinder models (350,500,650,750cc etc) (1946-83).

Made in Italy by Surflex.    
  
OEM:  57-1363,42-3195