China Driving Subject 4 (Motorcycle) study materials
China Driving Subject 4 (Motorcycle) study resources

China Driving Subject 4 (Motorcycle) key terms

China Driving Subject 4 (Motorcycle) · Get comfortable with the vocabulary.

Defensive riding

A riding style where you assume other road users may make mistakes and keep space, visibility, and an escape route ready. It means anticipating hazards early rather than reacting at the last moment.

Related: Following distance, Blind spot, Escape route
Following distance

The gap you keep behind the vehicle ahead, measured in seconds of travel rather than metres. A longer gap gives you time to see hazards, brake smoothly, and avoid sudden swerves on slippery surfaces.

Related: Braking distance, Defensive riding
Blind spot

The area beside or behind a vehicle that the driver cannot see in the mirrors. Motorcycles often sit in a car's blind spot, so riders should avoid lingering there and pass promptly or drop back.

Related: Defensive riding, Shoulder check
Shoulder check

A quick glance over your shoulder before changing lane or turning, to cover the area mirrors do not show. On a motorcycle it must be brief so you do not lose sight of the road ahead.

Related: Blind spot, Mirror adjustment
Countersteering

At speeds above walking pace, pressing the handlebar forward on the side you want to turn makes the bike lean and curve that way. Understanding this helps riders steer precisely in avoidance manoeuvres.

Related: Lean angle, Emergency swerve
Lean angle

How far the motorcycle tilts into a corner. More lean means less tyre grip left for braking or bump absorption, so riders should slow before the bend and keep lean moderate on uncertain surfaces.

Related: Countersteering, Traction
Traction

The grip between tyre and road surface. It falls sharply on wet paint, gravel, oil, and metal covers, so riders must reduce speed and avoid hard braking or sharp leaning on such surfaces.

Related: Lean angle, Skid
Skid

Loss of grip causing a wheel to slide instead of roll. On a motorcycle a locked front wheel usually causes a fall, so progressive braking and smooth inputs are safer than grabbing the lever.

Related: Traction, Progressive braking
Progressive braking

Applying the brakes smoothly and increasingly rather than snatching them, letting weight transfer to the front tyre. It shortens stopping distance and reduces the risk of a front-wheel lock-up.

Related: Skid, Braking distance
Braking distance

The distance travelled from the moment braking begins until the motorcycle stops. It grows with speed, load, and poor grip, and adds to reaction distance to give total stopping distance.

Related: Reaction distance, Following distance
Reaction distance

The distance covered while the rider notices a hazard and begins to act. Fatigue, alcohol, distraction, and rain all lengthen reaction time, so a safe gap must cover more than braking alone.

Related: Braking distance, Fatigue
Escape route

A planned path out of trouble, such as the gap beside a slowing truck or the shoulder ahead. Constantly identifying one keeps you from being trapped when traffic suddenly stops.

Related: Defensive riding, Hazard perception
Hazard perception

The skill of spotting potential dangers early, such as a car door about to open or a pedestrian between parked vehicles. Early recognition gives time to adjust speed and position calmly.

Related: Escape route, Defensive riding
Emergency swerve

A rapid change of direction to avoid an obstacle without braking hard enough to lock a wheel. Keep the bars firm, look at the gap, and straighten up before braking once past the hazard.

Related: Countersteering, Progressive braking
Target fixation

The tendency to steer toward whatever you stare at, such as a pothole or a fallen rider. Riders should deliberately look at the safe path instead, because the bike follows the eyes.

Related: Hazard perception, Emergency swerve
Rider fatigue

Physical and mental tiredness from long riding, wind, vibration, and heat. It slows reactions and judgement, so plan breaks at least every two hours and stop sooner if concentration fades.

Related: Reaction distance, Heat exhaustion
Protective helmet

Headgear with a rigid shell, impact-absorbing liner, and secure chin strap, worn fastened whenever riding. A correctly fitted helmet meeting national standards greatly reduces head injury severity in a crash.

Related: Riding gear, Helmet strap check
Riding gear

Purpose-made clothing including abrasion-resistant jacket and trousers, gloves, boots, and eye protection. It shields against road rash, wind, and debris, and bright colours improve how easily others see you.

Related: Protective helmet, Conspicuity
Conspicuity

How easily other road users notice you. Riders improve it with headlights on, reflective strips, bright clothing, and avoiding blind spots, especially in rain, fog, or low evening light.

Related: Blind spot, Riding gear
Helmet strap check

Confirming the chin strap is fastened and snug before every ride. An unfastened or loose strap lets the helmet rotate or come off in a fall, defeating the protection it is designed to give.

Related: Protective helmet, Pre-ride inspection
Pre-ride inspection

A short check before setting off covering tyres, brakes, lights, horn, chain, mirrors, and fuel. Catching a soft tyre or failed brake light at the kerb prevents breakdowns and crashes on the road.

Related: Tyre pressure check, Chain tension
Tyre pressure check

Measuring both tyres with a gauge when they are cold and setting them to the manufacturer's figures. Wrong pressure harms grip, wear, and handling, and underinflation can cause dangerous heat build-up.

Related: Tread depth, Pre-ride inspection
Tread depth

The height of the grooves in the tyre pattern, which clears water and keeps rubber in contact with the road. Worn tyres lose wet grip and are illegal below the minimum depth set by regulation.

Related: Tyre pressure check, Aquaplaning
Chain tension

The amount of slack in the drive chain, set to the maker's specification. Too tight strains bearings and can snap; too loose can derail or jam the wheel, so check and lubricate regularly.

Related: Pre-ride inspection, Brake fluid level
Brake fluid level

The fluid in the hydraulic reservoir that transmits lever pressure to the brakes. A falling level signals wear or a leak, and old fluid absorbs moisture, reducing braking in hard or repeated use.

Related: Progressive braking, Pre-ride inspection
Aquaplaning

When a layer of water lifts the tyre clear of the road and steering and braking fade. Ease off the throttle, avoid fierce braking, and let speed drop until grip returns, then pull over if needed.

Related: Tread depth, Traction
Wet-weather riding

Adjusting to rain by slowing early, braking gently, increasing following distance, and leaning less. Painted lines, manhole covers, and fresh oil are extra slippery, and spray reduces your view and visibility.

Related: Aquaplaning, Following distance
Fog riding

Riding in reduced visibility using dipped headlight, low speed, and a bigger gap, while watching for the rear lights of traffic ahead. Never use main beam in fog, as it reflects back and blinds you.

Related: Conspicuity, Wet-weather riding
Crosswind

A sideways gust, common on bridges, coast roads, and when passing gaps in buildings or trucks. Grip the tank with your knees, reduce speed, and allow room so a gust does not push you off line.

Related: Traction, Overtaking a large vehicle
Overtaking a large vehicle

Passing a truck or bus quickly and decisively, avoiding its blind spots and the buffeting it creates. Confirm the way ahead is clear, signal, and return to your lane only when you see the vehicle's front in your mirror.

Related: Blind spot, Crosswind
Lane splitting

Riding between lanes of moving traffic. It is restricted or prohibited in many places and leaves little room to react if a car changes lane, so riders should follow local rules and keep a full lane position.

Related: Blind spot, Defensive riding
Traffic signal

A light-controlled instruction such as red, green, amber, or a flashing warning. Riders must obey them, stop before the stop line on red, and treat a flashing amber signal according to local rules.

Related: Road marking, Right of way
Road marking

Lines, arrows, and symbols painted on the surface that guide and restrict movement, such as solid centre lines, stop lines, and zebra crossings. Solid lines generally must not be crossed.

Related: Traffic signal, Right of way
Right of way

The priority to proceed that rules give at junctions, crossings, and merges. It is never taken by force; riders should confirm others have seen them before assuming they will yield.

Related: Traffic signal, Defensive riding
Drink riding

Operating a motorcycle after consuming alcohol. It impairs balance, judgement, and reaction time, and limits set by law are strict, with serious penalties and licence consequences for exceeding them.

Related: Rider fatigue, Reaction distance
Demerit points

Penalty points recorded against a licence for traffic offences. Accumulating enough within a set period leads to suspension or retraining, so riders should track their record and correct unsafe habits.

Related: Drink riding, Right of way
First aid at the scene

Basic care given before help arrives, such as calling emergency services, keeping the casualty still, and controlling bleeding. Do not remove a rider's helmet unless breathing is blocked, and keep traffic away.

Related: Crash scene protection, Protective helmet
Crash scene protection

Making a collision site safe by warning traffic, switching on hazard lights, and moving people off the carriageway where possible. It prevents further collisions while casualties receive help.

Related: First aid at the scene, Hazard perception
Heat exhaustion

Overheating from riding in hot weather, causing weakness, dizziness, and heavy sweating. Stop in shade, loosen gear, and drink water; continuing to ride risks collapse and loss of control.

Related: Rider fatigue, First aid at the scene
Courtesy on the road

Yielding politely, signalling clearly, avoiding unnecessary horn use, and not blocking others. Small courtesies reduce conflict and make the rider more predictable to drivers around them.

Related: Conspicuity, Right of way