TM Design Works Factory Edition Rear Chain GuideSuzuki Rmz250 / Rmz450 Replace your damaged chain guide with a durable composite guide from TM Designworks. Features: Solid body design, with non-replaceable wear pad Works with all standard and sealed chains Includes new mounting hardware Industry leading plastic formula RMS (Return Memory System) Absorbs impacts and returns to center Friction reducing additives and UV protection to eliminate color fade Used by championship winning race teams worldwide Made in the USA