Complex sentence: Although neither bike was made in great numbers this didn't deter Wilf Green from producing another Importer "Special"--the ETZ300 was basically a standard ETZ250 with a re-bored (and slightly restyled) engine, cockpit fairing and revised decals.
Split into simpler sentences: Although neither bike sold in great numbers this didn't deter Wilf Green from producing another Importer "Special". The ETZ300 was basically a standard ETZ250 with a re-bored (and slightly restyled) engine, cockpit fairing and revised decals.