O.S. SPEED TYII .21 Off Road Engine

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O.S. SPEED B21 TY2 is designed for Ty Tessmann

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O.S. SPEED B21 Ty Tessmann II square stroke engine. Ty II is based on B2101, the 2014 World Champion engine, with 5.8mm carb restrictor, which is his favorite. And the new feature different from the original B2101 is that Ty II has a low- profile head of Ty’s original design, new shape and double height vertical fins compare to the latest model B2102.

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