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A completely newly developed engine in the land promised to Car Engines, Japan .
The B7TT Factory Tuned .21 Racing Off Road engine itself * has an all-new crankcase design that improves internal gas flow and thus increases performance in every rpm range.
The silicone liner crankshaft is DLC coated to prevent pin wear and oxidation. The crankshaft works in a high-quality rear ceramic bearing Made in JAPAN.
The "cylinder and piston" with 3+1 channels is made of special alloys to optimize the life and reliability of the motor unit. Combined with the long-stroke system, the B7TT provides better handling and more torque than previous engines. The super-aligned aerodynamic connecting rod with "knife edges" is also made of a special aluminum alloy.
The cast aluminum carb features the latest dual bottom throttle adjustment for fine tuning/tuning transitions. This new carburetor guarantees low fuel consumption by 10%
The completely newly designed cooling head brings a lower center of gravity with the same amount of cooling fins.
