Mirror thread size ?

Had some small oberons on one of my bikes although looked good they were terrible with no view. Thought the thread size on the bonneville may have been m12 x 1.25 but it's a while since I've had mine off.

 

I used to have the "Mickey Mouse" std. mirrors but couldn't see anything but elbows in them. Changed to some cheapy Chinese bar-ends and they are just fab. Can see right behind me in both mirrors plus a wide field of view covering all blind spots.

 

They look like oberons.......

 

I think they cost about £5 the pair !!!! Still working well two years on.....................