Vespa cylinder lock by ZADI. 31.5 mm, upper collar: 4mm, rear: 6mm
Fits: Vespa 50N->236000/L ->580000/S->34200/SS/90 ->31300/SS/125 PV->028959 /125 GT/Sprint->62684/GTR /Super/150 Sprint -> 077174 /Super/160 GS->55507/180SS l
Due to the different lengths that are required with different models, cylinders locks are divided into three different sizes.
"A" designates the complete length, "B" the collar at the top, and "C" the rear collar.
A cylinder that is too long would stick out, a rear collar that is too small would not reach the steering column or the key bolt, with a front collar that is too wide, the cylinder will not fit in the steering column.
Don't forget tp purchase the matching steering lock cover and rivets.