Depends on the track, some tracks have a class for pit bikes to race in.
One can find pit bikes for sale online at various websites. One can find pit bikes for sale at websites such as Jazz Motorsports, PowersportsMax and Powersport Parts.
these bikes are often ridden around at drag strips and race tracks in the "pit."
Chinese pit bikes on a smooth straight 120 km at the most
They are smaller than normal bikes.
Pit bikes were originally used to ride around the "pit" or outer areas of dirt bike events in America. Typically, this bike would be a Honda Z50. As time progressed, motorbikes were specifically designed for this purpose.
8.0 horse power - 125 cc
There are a number of websites that carry parts for dirt bikes. TBolt USA is one such place. Orion Pit Bikes is another. You might also wish to check Factory powerhouse.
There are a few 110cc dirt bikes on the market right now that are very popular. Some of these include the Yamaha TT-R110E, the SSR Pro Beginner Dirtbike, and the Apollo Orion ADR.
Bicycle stores have good bikes, not department stores.
are framed bmx bikes any good