| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 39 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 11 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 11 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 10 |
| Rear reflector missing (4.8.2 (a) (ii)) | 9 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 8 |
| Stop lamp remains on when the brakes are released | 8 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 7 |
| Registration plate issues | 6 |
| Front Position lamp not working (4.2.1 (a)) | 6 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 5 |
| Front Brake excessively binding |1.2.1 |f|| | 5 |
| Front Position lamp not working |4.2.1 |a|| | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Offside Rear Footrest missing (6.2.12 (a)) | 4 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 4 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 3 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 3 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 3 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 2 |
| Registration plate lamp issues | 2 |
| Position lamp not working (4.2.1 (a)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Rear Brake grabbing severely (1.2.1 (c)) | 2 |
| Offside Front Footrest missing (6.2.12 (a)) | 2 |
| Offside Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 2 |
| Rear Brake grabbing severely |1.2.1 |c|| | 2 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Front Exhaust system insecure |6.1.2 |a|| | 2 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 2 |
| Nearside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Offside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| All direction indicators not working |4.4.1 |a| |ii|| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 2 |
| Offside Front Direction indicator lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii)) | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Exhaust system insecure (6.1.2 (a)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Floor brake test brake efficiency less than 27.5% overall |1.2.2 |a| |ii|| | 1 |
| Front Headlamp aim not tested |4.1.2 |b|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front Brake lever so insecure that the brake cannot be readily applied |1.1.2 |e| |ii|| | 1 |
| Rear Brake lever so insecure that the brake cannot be readily applied Rear brake pedal seized. |1.1.2 |e| |ii|| | 1 |
| Front Clutch lever bent so it cannot be readily operated Clutch lever broken and botched with spanner. |6.2.7 |b|| | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Rear Drive chain so worn it is likely to fail Drive chain seized. |6.1.7 |c| |ii|| | 1 |
| Offside Rear Brake pivot has restricted free movement (1.1.15 (e)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Nearside Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Position lamp showing white light to the rear Lens broken (4.2.3 (a) (ii)) | 1 |
| Brake linkage has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Nearside Front Brake caliper has no reserve travel and braking performance affected |1.1.16 |e| |ii|| | 1 |
| Brake pedal mounting insecure |3.1.2a| | 1 |
| Central Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Rear Position lamp lens seriously defective (4.2.1 (b)) | 1 |
| Rear Brake pedal insecure (1.1.2 (e) (i)) | 1 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Offside Front Footrest missing |6.2.12 |a|| | 1 |
| Stop lamp not working Rear brake not operating stop lamp |4.3.1 |a| |ii|| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Headlamp aim headlamp damaged and function impaired lens twisted in surround |1.2.3a| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Footrest missing Passenger (6.2.12 (a)) | 1 |
| Offside Front Wheel spindle locking device ineffective (5.2.1 (d)) | 1 |
| Rear Wheel fixing loose (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Rear Footrest missing Rear footpegs missing |6.2.12 |a|| | 1 |
| Front Position lamp missing |4.2.1 |a|| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp aim projected beam image obviously incorrect no image (4.1.2 (c)) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Front Brake caliper damaged (1.1.16 (a) (i)) | 1 |
| Front Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 1 |
| Chain guard insecure (6.1.7 (i)) | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front Brake hose fouling |3.2.B3b| | 1 |
| Front Brake hose excessively twisted |3.2.B3a| | 1 |
| Front Brake hose stretched by steering movement |3.2.B3b| | 1 |
| Rear Rear suspension fouling which affects the movement of the rear suspension exhaust mounting |2.4.A.3a| | 1 |
| Headlamp not working on main beam Mainbeam warning light also stays on with position light. |4.1.1 |a| |ii|| | 1 |
| Headlamp aim not tested Due to headlight not working. |4.1.2 |b|| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Brake rod insecure split pin missing |1.1.15 |c|| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake pedal insecure circlip missing (1.1.2 (e) (i)) | 1 |
| Rear Brake drum missing torque arm split pin missing (1.1.14 (c)) | 1 |
| Nearside Front Brake lever insecure nut missing off clutch bolt (1.1.2 (e) (i)) | 1 |
| Stop lamp does not illuminate immediately a brake applies foot |1.3.1a| | 1 |
| Rear Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Chain guard insecure |6.1.7 |i|| | 1 |
| Rear Upper Motorcycle structure joining/attachment plate or fastening insecure |6.1.1 |b| |i|| | 1 |
| Stop lamp not working rear control (4.3.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Front Position lamp not working fit a bulb |4.2.1 |a|| | 1 |
| Front Brake cylinder leaking and braking performance affected (1.1.16 (b) (ii)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Front Stop lamp not working switch faulty (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake pedal so insecure that the brake cannot be readily applied fouling another component |1.1.2 |e| |ii|| | 1 |
| Offside Brake component insecure rear brake pedal locking device missing |1.1.21 |c|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Wheel alignment incorrect which adversely affects the steering handle bars not straight |2.4 |a|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Headlamp reflector seriously defective (4.1.1 (b) (ii)) | 1 |
| Drive chain sprocket so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Front Brake master cylinder leaking cap leaking |1.1.10 |b| |ii|| | 1 |
| Front Wheel spoke excessively loose |5.2.2 |d|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Stop lamp showing white light to the rear |4.3.3 |a| |ii|| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Offside Rear Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Front Stop lamp not working front brake (4.3.1 (a) (ii)) | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Stop lamp not working foot brake micro switch faulty |4.3.1 |a| |ii|| | 1 |
| Rear Footrest missing both |6.2.12 |a|| | 1 |
| Rear Stop lamp not working control |4.3.1 |a| |ii|| | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Fuel tank insecure |6.1.3 |a| |i|| | 1 |
| Nearside Rear Shock absorber insecurely attached |5.3.2 |a| |i|| | 1 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Drive chain excessively tight Drive chain has a bad tight spot (6.1.7 (k) (i)) | 1 |
| Rear Brake grabbing severely Bad grabbing when foot on pedal (1.2.1 (c)) | 1 |
| Handlebar deformed to the extent that steering is affected |2.2.1 |c| |ii|| | 1 |
| Stop lamp not working rear brake |4.3.1 |a| |ii|| | 1 |
| Wheel alignment incorrect which adversely affects the handling front twisted |2.4 |a|| | 1 |
| Headlamp insecure shell cracked |4.1.1 |c|| | 1 |
| Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Rear Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride joining link clip missing |6.2.1h| | 1 |
| Central Front Upper Headlamp not working on main beam Only works when in neutral ! Shifting into gear turns headlamp off ! (4.1.1 (a) (ii)) | 1 |
| Central Front Upper Headlamp not working on dipped beam Only works when in neutral ! Shifting into gear turns headlamp off ! (4.1.1 (a) (ii)) | 1 |
| Stop lamp not working Brake control 1 (4.3.1 (a) (ii)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Stop lamp not working With brake control 2 |rear brake| |4.3.1 |a| |ii|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Brake master cylinder defective but brake still operating Brake lever locks into place not allowing brake to fully lock |1.1.10 |b| |i|| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Headlamp has more than 1/2 LEDs not functioning |4.1.1 |a| |ii|| | 1 |
| Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected |1.1.2 |b| |ii|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected spring adrift (1.1.2 (b) (ii)) | 1 |
| Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Exhaust system insecure Nuts loose at head (6.1.2 (a)) | 1 |
| Rear Exhaust system insecure Mounting - fixing missing (6.1.2 (a)) | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake linkage has restricted free movement exhaust mount fowling (1.1.15 (e)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Brake performance not tested due to operation of rear brake (1.2.1 (g)) | 1 |
| Rear Brake lagging in operation brake operation - no gradual increase (1.2.1 (d)) | 1 |
| Front Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Front Brake master cylinder defective but brake still operating |1.1.10 |b| |i|| | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Brake component insecure Brake anchor bolt loose! (1.1.21 (c)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Rear Wheel spindle or securing nut|s| so insecure that wheel security or steering control is adversely affected |5.2.1 |c| |ii|| | 1 |
| Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Rear Stop lamp not working Not Working From Rear Control (4.3.1 (a) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted Incorrect Direction (6.1.7 (j) (i)) | 1 |
| Offside Rear Wheel more than one fixing loose |5.2.1 |a| |ii|| | 1 |
| Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Fuel cap ineffective |6.1.3 |b| |i|| | 1 |
| Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Front Brake master cylinder insecure |1.1.10 |c|| | 1 |
| Front Brake caliper insecure |1.1.16 |c| |i|| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Rear Stop lamp likely to become detached |4.3.1 |c| |ii|| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Headlamp light source and lamp not compatible led bulb fitted (4.1.4 (c)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| All direction indicators not working Will only flash at high revs (4.4.1 (a) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Pillion seat insecure bolt missing |6.2.6 |a| |ii|| | 1 |
| Position lamp missing |4.2.1 |a|| | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Brake hose excessively stretched (1.1.12 (b) (ii)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Stop lamp showing white light to the rear (4.3.3 (a) (ii)) | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Front Upper Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Nearside Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Stop lamp not working from front brake lever |4.3.1 |a| |ii|| | 1 |
| Stop lamp not working from rear brake lever |4.3.1 |a| |ii|| | 1 |
| Rear Brake component insecure s/pin missing |1.1.21 |c|| | 1 |
| Front Brake master cylinder leaking sight glass broken (1.1.10 (b) (ii)) | 1 |
| Offside All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside All direction indicators not working not flashing (4.4.1 (a) (ii)) | 1 |
| Offside Rear Footrest insecure |6.2.12 |a|| | 1 |