I've studied the photo's and just can't see the metal guards.

I'm assuming that Trevor will be familiar with the M20, being a profssionl restorer and I'm assuming having restored this WM20 with similar tank mounted knee grips:

http://cobraclassics.com/1942%20BSA%20WM20/index.html

All the best, Glenn

email (option): glenn_mullan@postmaster.co.uk

yes thats it Ron, a set of spare levers

email (option): taybrig@shaw.ca

I can see what the shield on the tank they are seeing a shadow on the tank making it look like something is on the front of the tank

email (option): malmotorcycles@gmail.com