snippet: Replacement sheave and post assembly for the STM RZR XP-Turbo and RS-1 secondary. Comes with sheave and post assembled together and rollers installed. <br><br>STM Powersports is a division of Supreme Tool and Machine Inc., which was established back in 1991. Supreme Tool is a manufacturer of custom machined components and assemblies for high-performance ATVs/UTVs, side-by-sides, and snowmobiles. The brand takes pride in being able to design and build any product from a customer's conceptual idea to a complete assembly.<br>

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