2006 THUMPSTAR BSF PRO 125 Pit Bike, This is Thumpstar's top of the line race bike for the 10 class. It powered its way to 4th in the 2005 AMA National Pit bike series piloted by MikeLeavitt even though it only competed in 3 of the rounds. This bike featuresa 125cc (9.45hp) engine, 10 -12 alloy wheels with new hubs, Omicron's USDopen oil cartridge adjustable forks, an aluminum BSF frame (Billeted SpinalFrame), Elka mini series rear shock, disc brakes, 4 speed trans with clutch,steel braided brake hose's, billet gas and valve caps, aluminum slide plate,new bigger inlet pipe, Mikuni 20-24mm carb, and alloy sprockets. This thingis ready to rumble right out of the box and it's BUILT HERE IN THE US. Allspare parts are avail. Comes with a two year warranty.