Can anyone tell me what size wrench I need for the gearbox drain plug. I don't have the right size and will have to buy one. Knowing the size will make it lots easier.
Thanks for your help.
Hi,
What bike do you have?
Duh! Good question. It's a 1969 BSA B25s Starfire.
Thru trial and error I got it off with a 24mm socket.
Thanks for your response.
It is 1/2" UNC - you need a 3/4" AF socket or spanner.
Thanks much. :)