BSA part frame, pre -war?, heavy duty, V-twin?
Part front frame for BSA? Frame No YM20T.4156 Looks like pre-WWII, Heavy duty, from a rigid frame (, possibly V-twin it is much heavier than another M20 frame I have (thicker walled tubing, larger diameter, heavier lugs); this one might be a V-twin?? The frame has been cut half way along the top tube Value lies in the lugs, and probably in the frame number pick up from Mitcham area, Adelaide Or I can post at your cost cheers