Innovative but ugly Leader stroker twin that was meant to revolutionize the commuter market but failed on looks and motor that needed lots of fettling to stop it oiling up. Arrow and Golden Arrow were stripped, sporting versions that went quite well until the bores or main bearings died – the RD250 of their day. Braking and handling could be somewhat hazardous when pushed. Not many good ones left, either concours or rats.
1958-66 249cc two stroke twin, 18/20hp, 70/80mph, 60/50mpg, 360/300lb