Associated's new B5M 3-gear transmission provides the spec class racer with a lightweight/low rotating mass option to improve drivetrain efficiency. It also features a new, smaller, lightweight top shaft which uses smaller diameter bearings (5x10x4mm, #91560) for additional weight savings. The 3-gear transmission is also a great tuning aid for modified class racing on high-grip tracks because the gyroscopic effect of the motor is reversed, making the car stay flatter in the corners.
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