The Texas Mini GP Series is an American organization that promotes and hosts small motorcycle road races in Texas. Most races are held at local kart tracks, but others are organized in conjunction with the Central Motorcycle Roadracing Association at larger tracks like Oak Hill Raceway and Texas World Speedway.
Many well known riders have raced with the TMGPS, including Nicky Hayden, Ben Spies, Logan Young, Will Gruy, Joe Prussiano and Phillip Fisher.
In the beginning, the ride of choice was the Yamaha YSR50; but today the pits are littered with everything from YSR's and NSR's to XR100's and TTR125's.
References
Texas Mini GP Series Wikipedia(Text) CC BY-SA