Thumpstar TSX-C 140
All time best engine YX140
3 Point Swing-arm Pivot Support system:
These type of frames support the swing-arm pivot in the center and on both sides
Unlike most all other Pit bikes CRF50 XR50 KLX110 and Minis that only support the swing-arm in the center
Wheels:
5 Sprocket Bolt Hub with Aluminum Front Rear Rim
Unlike most all other Pit bikes CRF50 XR50 KLX110 and Minis that have steel rims
428 Size Chain and sprockets
Unlike most all other Pit bikes CRF50 XR50 KLX110 and Minis that have smaller 420 chain
Cradle Frame Advantage:
This system supports the engine from the under side so your weight is supported by the frame
Unlike most all other Pit bikes CRF50 XR50 KLX110 and Minis that the foot pegs