The 6 mm thick HDPE plastic skid plates are specially designed for MX, SX, and soft enduro use, with minimal obstacles. They protect the lower engine, frame, and casings.
The 8 mm thick skid plates, on the other hand, are designed for extreme enduro with significant obstacles. They cover the lower engine, frame, casings, and water pump. The rear extension of the skid plate protects the linkage and frame all the way to the footpegs for optimal protection.