That could go some way to explain why others follow the painted rim centres.I knew a series A owner who I first met 28 years ago who bought his series A Meteor in 1945 2nd hand. Still had it when I met him in 1990. That bike is the reason my Dad bought the A Comet I now own. Anyway Johns bike had the back wheel fully chrome and the front wheel Black centre with red lines. John said it was corect as the Vincent factory rebuilt the front wheel with a C painted rim in 1952 when he crashed the A. He said the back wheel was always full chrome without any paint or lines.