Model : Race bike Year: Late 2006- Early 2007 Displacement: Lifan Big bore 138cc oil cooled engine/ possibly 127cc Transmission: N1234 Forks: USD adjutable Wheels: 12inch rear 14inch front Start: Kick start Brakes: Single piston Disc Brakes Who this bike is for: Someone who's looking for a bike that wants to perform,With afew mods these bikes can go a long way thus make a good race bike for minimoto racing..These bikes look mean, sound tough and perform excellent! These bIkes are an excellent purchase straight out of the box... Although some minor parts on this bike dont let it perform to its best level.. The rear shock is not of best quality but holds up quite well, although the bushings wear away very quickly. As for the front forks, so far they have performed excellent and just bearly bottom out when casing it on the front end.. The levers are made of poor quality metal that doesnt work in favor for dirtbike riders, they just cant hold up to our demands and same goes for the KMC chain fitted from stock. It is said that the engine was orignally the lifan 120cc engine bored out another 7 cc and then stamped with a 138cc badge on the barrel... however.. My 138 easilly keeps up with a mates lifan bigbore 140cc..( Pit pro 140) I rate this bike 8and a 1/2 out of 10. Please feel free to add your rating and past experiences with this bike. K.T.S.S. Cheers,MaRk.