Identifying pot shaft dimensions for pro mod Charvel San Dimas

noisepolluter

I’m looking to get some speed knobs in a suitably lairy pink w/black numbers for my Mexi San Dimas.

There seem to be a few sellers who might have something suitable (also grateful for recommendations) but first I need to know what size I’m asking for. Here are a couple of pics:

Top side:
https://flic.kr/p/2pyG7Dn

Underside:
https://flic.kr/p/2pyHJbF

Anyone able to clue me in?

SteveRobinson

They look to be CTS pots so the shaft is likely 1/4"

elstoof

Do the speeds knobs you’re looking at fit solid shaft pots? They’re often splined slide on jobs

Danny1969

Have you got any drill bits ? if so find the one that that's the same size (probably in mm for modern drill bits) 

noisepolluter

elstoof said:

Do the speeds knobs you’re looking at fit solid shaft pots? They’re often splined slide on jobs

I may ultimately need to change pots I suppose - Alpha do splined ones. I never use the push-pull coil split so I don’t feel wedded to the stock ones 

Philly_Q

If you get splined Alpha pots, make sure you buy knobs which fit metric (Europe/Asia) pots, not imperial (USA) ones.  Or vice versa if you buy splined CTS pots.