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This purpose-built race transmission is equipped with a full-manual clutch that reduces weight on the end of the crank, creating a more responsive fast revving motor. Extremely durable, 4 disc heavy duty clutch designed to withstand the torque of high-horsepower motors. The gear ratios are race oriented and engineered for high horsepower and faster speeds. Primary reduction changed from 4.058 (69/17) to 3.666 (66/18) with first gear ratio change from 3.273 to 2.615. This lets first gear become more usable and suited for race conditions.
Installation Note: Clutch actuation arm must be modified for use in BBR Perimeter Frames.
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BBR Motorsports, Inc