Vespa front axle thread size?

[LI225Canada]

I am putting together the forks on a small frame, V90.
What is the thread size on the front axle?
This is a V90 with a 4 bolt axle for 10" wheels.
Think it is either a M10 or M11 with a 1.5 left hand thread.
The person who took this scoot apart did not know it was a left hand thread so damaged the top 1 or 2 turns, should be able to re-thread it.


Thanks

[dennis]

Google,vespa thread sizes, ther're on the Beedspeed site, would do a link but i just about get this far.