Motorcycle controls, braking and swerving

On a car the pedals and wheel work the same in any model. On a motorcycle, the right hand alone controls both the throttle and the front brake, and a mistake with either is felt immediately through the tyres. The motorcycle theory test checks that you understand this layout and the physics behind it, especially in the safety and your motorcycle and vehicle handling topics.

Where each motorcycle control sits

Switchgear on the handlebars adds the indicators, horn, dip switch and the engine cut-out (kill) switch, usually on the right. Many motorcycle indicators do not cancel themselves, so a classic hazard is a rider still signalling left long after the turn, inviting a driver to pull out. Check and cancel.

Some machines have linked brakes, where one control also works part of the other brake, and many have ABS. Read the handbook so you know what your machine does before you rely on it.

Before a ride, the controls need checking as much as the tyres. Levers should return when released, the throttle should snap shut on its own, and cables should not snag when you turn the bars. Chain tension and lubrication matter because a loose chain can jump off the sprocket and lock the rear wheel. Motorcycle tyres must have at least 1 mm of tread across three-quarters of the width and in a continuous band all the way round; a moped needs visible tread. Most riders replace them well before that.

Low-speed control questions often turn on clutch control and the rear brake. In a U-turn or a walking-pace queue, slip the clutch, keep a little throttle and steady speed with the rear brake. Grabbing the front brake with the bars turned is how riders drop bikes in car parks.

Stopping hard and steering round trouble

When you brake, weight moves forward. The front tyre is pressed into the road and the rear goes light, which is why the front brake does most of the work on a dry surface. Use both brakes together: squeeze the front progressively rather than snatching it, and add the rear. In the wet, grip is lower and you share the effort more evenly and apply both more gently.

Brake when the bike is upright and travelling in a straight line. Braking while leaned over uses grip that the tyres need for cornering.

When a wheel locks

• Rear wheel locks (no ABS): the back end slides. Release the rear brake and reapply it.
• Front wheel locks (no ABS): you will lose steering and probably fall. Release the front brake at once, then reapply progressively.
• With ABS: brake firmly and keep the pressure on. The system stops the wheels locking, but it does not create grip, so stopping distances on gravel or wet leaves are still long.

Swerving

Sometimes there is no room to stop, for example when a car door swings open a few metres ahead. A swerve uses countersteering: a firm push on the right handlebar leans the bike to the right, and a push on the left leans it left.

The rule examiners and the theory test look for is brake or swerve, never both at the same moment. Brake in a straight line first, release, swerve, then brake again once the bike is upright. Look at the gap you want, not at the object you are avoiding: the bike tends to go where your eyes go.

The Module 1 off-road test asks you to demonstrate both an emergency stop and an avoidance exercise, so the theory you learn here is checked in practice later.

Typical wrong answers: “use only the rear brake in an emergency”, “brake in the bend so you are slower on the exit”, and “swerve and brake together to save time”.

Pair this page with cornering and road surfaces, because most loss of grip on bends starts with braking at the wrong moment, and see motorcycle theory test questions explained for the side stand, drive chain and tyre questions. Then check your recall in the motorcycle mock tests.