Triumph Cylinder 9-Stud with Pistons T120, TR6, 6T, 650 cc 1963-1972, Made in England must be honed to fit pistons with Pistons Standard Sizewith oil feedPlease look at all pictures
These fit all Velocettes with a full width ALLOY front hub, Viper, Venom, Clubman and Thruxton (or any other Velocette that the alloy full width hub is fitted too).