The inventor and worldwide patent holder of the first solid body plastic chain guide system. The Factory Edition #1 Rear Guide is a solid body design, with long lasting non replaceable wear pad. Called by Dirt Bike Magazine "The Superman of all chain guides" over the past 20 years. Exclusive Plastic formula "RMS" (Return Memory System) is so guide returns to center on impact. The only guide with a UV protection to resist color fade, and an oil additive to reduce friction. Used by more Factory race teams than all other rear chain guide products all over the world. USA Patent # D532,720 and European Countries Patent # 506480. Can be used for SX, MX and all off-road riding. Redesigned for 2023: Large leading and bottom edge bevels to reduce grab in ruts and rocks. Developed for Enduro, SX, MX and off-road - Suitable for all types of riding.