Hi
I'm using an adapted AJS rear sprocket/drum, on my 250 Aero, as some members are aware it would not have sparkling performance normally. I looking for an original rear drum/sprocket , but in the meantime ,to keep it on the road , I may fit a larger sprocket. What number of teeth should be on an original 250 sprocket ? and is it worth exceeding this to get better performance in low gears ?? What do members recommend ?
