so i have a schwinn bicycle and was looking to put a motor on it then shortly learned that most stock motors dont go that fast 25-30 mph and was wondering if any one knows where i can by a bigger motor or has a creative idea to make/pull and use a different one also im satisfied with about 45 50 mph thanks 
and pleas no answers like its stuped to go that fast on a bicycle or that might not be legal dont really care legal or not
and pleas no answers like its stuped to go that fast on a bicycle or that might not be legal dont really care legal or not