Rocker cover filler thread size

[cheb]

Anyone care to measure the thread size on a rocker cover filler cap please?

Or does anyone know it without having to measure it. Touratech don't know and Siebenrock don't answer their emails.

TIA.

 

[NeilDD]

Cheb

Ignore me I thought I was in the 1150 section

 

[cheb]

The 1150 one might be useful too.

I'm way too cheap to spend money on one of these things when I have a spare cover, a lathe and a mate who can weld aluminium.

I'm looking for a thumb turn filler cap with a thread size I can get a tap for, BSP for preference. I've got a 1/2" BSP one but I'd prefer 3/4" or 1".