WA Motorcycle Theory Test key terms

The gap you keep between your motorcycle and the vehicle ahead, measured in seconds rather than metres. It gives you time to react and stop if that vehicle brakes suddenly.

A simple guide for dry conditions: pick a fixed point ahead and count two seconds after the vehicle in front passes it. If you reach the point sooner, you are too close.

The total distance travelled from the moment you notice a hazard until the motorcycle comes to a complete stop. It combines thinking distance and braking distance.

The distance covered while you recognise a hazard and begin to act. It grows with speed and is longer when you are tired, distracted, or affected by alcohol or drugs.

The distance needed to stop once the brakes are applied. It increases with speed and is much longer on wet, gravelly, or oily surfaces where tyre grip is reduced.

The delay between noticing a hazard and physically responding, typically around one second but longer when fatigued or distracted. It directly adds to your total stopping distance.

A tendency to steer toward whatever you are staring at, even a hazard. Riders should look where they want to go, through the corner, rather than at the danger.

At speeds above walking pace, pressing the handlebar on the side you want to turn causes the motorcycle to lean and curve that way. It is the main way to initiate turns.

How far the motorcycle tilts from upright during a turn. More lean allows tighter cornering but reduces available grip, so it must suit the speed and road surface.

The path chosen through a bend to keep the bike stable and visible. A common approach is to enter wide, aim for a late apex, and exit toward the outside for a better view.

The innermost point of your path through a corner. Choosing it carefully affects how early you can see through the bend and how safely you can accelerate out.

The furthest visible point of the road ahead as it curves out of sight. If it appears to move toward you, the bend is tightening and you should slow down.

The grip between tyres and road surface. It is reduced by rain, loose gravel, painted lines, metal covers, and cold tyres, so smooth inputs and lower speeds are needed.

Loss of tyre grip causing the motorcycle to slide rather than roll along its intended path. It often results from abrupt braking, too much lean, or a slippery surface.

A developing situation ahead, such as a car edging from a driveway or a pedestrian near the kerb, that may require you to change speed or direction.

The skill of scanning ahead and anticipating what other road users might do before it happens. It lets you plan a response early instead of reacting at the last moment.

A planned path or gap you identify in case a hazard develops, such as space beside a parked car. Having one ready reduces panic braking and sudden swerves.

The continuous process of checking mirrors, blind spots, and the road ahead before changing speed or direction. Good observation keeps you aware of traffic around you.

An area beside or behind the motorcycle that mirrors do not show. A head check before changing lanes or turning helps confirm nothing is hidden there.

A brief glance over your shoulder into the blind spot before changing lanes or direction. It should be quick enough to keep the road ahead in view.

Riding slowly between lanes of slow-moving or stopped traffic. It is only permitted where road rules allow it, must be done at low speed, and requires care around opening doors.

Riding between lanes of moving traffic, which is restricted or prohibited in many jurisdictions. Riders should check local rules, as penalties and conditions vary by state.

The legal requirement to let another road user proceed first at an intersection or crossing. Failing to give way is a common cause of collisions with motorcycles.

The entitlement to proceed before others in a given situation, set by signs, signals, or rules. It is never absolute, and riders should confirm others actually yield.

A place where two or more roads meet. It is a high-risk area for motorcycles because drivers often fail to see an approaching bike when turning or entering.

A circular intersection where traffic keeps moving in one direction. Riders must give way to traffic already on the roundabout and signal clearly when leaving.

The flashing light used to signal an intended turn or lane change. Cancel it after completing the manoeuvre so other road users are not misled about your direction.

Purpose-made riding gear including a helmet, jacket, gloves, trousers, and boots. It reduces injury in a fall and protects against wind, rain, and road debris.

A hard shell with impact-absorbing lining worn to protect the head. It must fit snugly, be fastened correctly, and meet the approved safety standard for your jurisdiction.

The clear or tinted face shield on a helmet. It should be clean and unscratched for clear vision, and tinted versions should not be used in poor light or at night.

A material's ability to resist being worn away when sliding on a road surface. Riding jackets and trousers are rated for this to reduce gravel rash in a fall.

Garments in bright colours or with reflective strips that make a rider easier to see. They are especially valuable in low light, rain, and heavy traffic.

How easily other road users can notice you. A bright helmet, reflective gear, and a headlight on during the day all improve it and reduce the risk of being overlooked.

Tiredness that slows reactions and impairs judgement. On a motorcycle it is dangerous, so riders should plan rest breaks, stay hydrated, and stop when concentration fades.

Your physical and mental readiness to ride safely. It covers being rested, sober, free from illness, and not distracted by stress, medication, or a mobile phone.

The amount of alcohol in your blood, measured to enforce drink-driving limits. Even small amounts slow reactions and reduce balance, which is especially risky on two wheels.

A quick inspection before setting off covering tyres, brakes, lights, controls, fluid levels, and chain or belt tension. It catches faults that could cause a breakdown or crash.

The air pressure inside the tyres, which should match the manufacturer's recommendation and be checked when tyres are cold. Wrong pressure harms grip, handling, and tyre life.

The system that slows and stops the motorcycle. Most bikes have a front brake on the right hand lever and a rear brake on the right foot pedal, used together smoothly.