How was a 400cc class machine allowed to compete with 250cc class dirt bikes ... Will the XEMX Yamaha XE4 electric dirt bike ...

First, it had to have a 250cc engine. Second ... some might argue it is technically Yamaha's first proper dirt bike. It did ...

Its 250cc water-cooled two-stroke dirt bike champion has great performance and capability. Built as a trail bike that works well in busy cities, Chappy sits low on tiny wheels, has a 50cc two ...