OS Speed B21 Ty II engine

To commemorate Ty Tessmann winning the 2018 ROAR Nationals and due to constant request from users, OS have decided to release the OS Speed B21 Ty Tessmann edition again. Set to go on sale in October, the Ty II is based on the B2101, with a special 5.8mm carb restrictor which is his favourite. Also different from the original B2101, the Ty II has a low- profile head of Ty’s original design, with a new shape and double height vertical fins compared to the latest B2102. Come in a set with a 90mm long manifold plus T-2090SC (combo set), or just the engine by itself, it will be limited to 300 pieces.

Source: O.S. Engines [osspeed.com]