For those who love the smell of gas and the sound of a four-stroke’s wail, the Big Wheel 2010 GIO 250cc Dirt Bike X31 features a powerful CB250, air-cooled, four-stroke engine, wrapped in a lightweight perimeter style frame for explosive acceleration and maximum agility as well as 19 inch front and 16 inch back dirt race wheels & tires. The biggest improvement over last year's model is brand new CB250 Zongshen motor with far more superior performance and reliability characteristics then the previous model. It achives better performance with more expensive engine design - overhead camshaft (OHC). The engine is also equipped with electronic reverse protection device to improve the operating safety of the vehicle and making it easier to operate
