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What does the B gear in a vehicle mean?

1 Answers

DelBarrett

07/29/25 7:09pm

B gear stands for Brake. It is the abbreviation of the English word 'brake', so the B gear can be understood as the braking gear. Detailed explanations about the B gear are as follows: 1. This braking is not directly applied to the brake pedal but uses the engine to restrain the vehicle. 2. It is usually used on some continuous long downhill sections. If you keep pressing the brake and descend in D gear, almost all the braking pressure is borne by the brake, and prolonged use can cause the brake pads to overheat and lead to brake failure. 3. When shifted into B gear, the transmission is limited to low gears (1-2) by the lock mechanism, and the engine's restraining effect is used to allow the vehicle to brake at low gear, thereby relieving most of the pressure on the brake. 4. The function of the B gear is similar to that of the L gear. The B gear can also be used when starting on a steep slope, playing the role of low speed and high torque.

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