| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 10 |
| Horn not working |1.7.3a| | 9 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Indicator switch defective |1.5.4| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 3 |
| Rear reflector on motorcycle obscured |1.4.2b| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Offside Rear Direction indicator insecure |1.5.3b| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 2 |
| Direction indicator not working |1.5.1c| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Rear Brake lever attachment screws loose |3.1.2b| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Registration plate lamp issues | 2 |
| Registration plate issues | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Brake lever not releasing correctly and functionality of brakes affected |1.1.2 |b| |ii|| | 1 |
| Roller brake test No brake control achieves an efficiency of 30% |1.2.2 |a| |i|| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Horn not working Horn not working |1.7.3a| | 1 |
| Centre Rear Rear position lamp insecure |1.1.1c| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Exhaust mounting missing cylinder head stud broken |7.1.1c| | 1 |
| Direction indicators flashing less than 60 times a minute All indicators light up but do not flash |1.5.1c| | 1 |
| Nearside Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear suspension bush has excessive free play Main bush/ spindle on top of engine/ transmission at connection to frame badly worn/ slack |2.4.A2a|i|| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |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 wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking front fender broken and loose |6.1.1c| | 1 |
| Nearside Forks insecure in fork yoke |2.2.2 |d| |i|| | 1 |
| Offside Forks insecure in fork yoke |2.2.2 |d| |i|| | 1 |
| Front Steering linkage insecure to the extent there is excessive movement at the mountings |2.1.3 |a| |ii|| | 1 |
| Front Stop lamp not working gose out switch faulty |4.3.1 |a| |ii|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected engine reves up on its own+ reves to high |6.2.7 |a| |ii|| | 1 |
| Rear Upper Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Steering headbearing has excessive free play appears to have had a front impact |2.2.2| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Centre Front Inner Horn not working |1.7.3a| | 1 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Front Direction indicator obscured |1.5.1a| | 1 |
| Indicator switch defective switch removed. |1.5.4| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Central Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake hose excessively damaged |1.1.12 |b| |ii|| | 1 |
| Front Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Steering movement excessively `notchy` with the wheel raised in centre |2.2.1b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Rear Rear reflector missing covered l plate |4.8.2 |a| |ii|| | 1 |
| Fuel cap ineffective |6.1.3 |b| |i|| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Brake caliper|s| insecure |3.2.A1j| | 1 |
| Brake component has an inadequate repair |3.1.5| | 1 |
| Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Floor brake test indicates a binding brake seized on hub arm |3.3.C2c| | 1 |
| Exhaust has part of the system missing rear mount |7.1.1a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Central Front Horn control not functioning. |1.7.2b| | 1 |
| Front Brake lever is inoperative |3.1.3c| | 1 |
| Front Brake fluid reservoir severely corroded Sight glass excessively corroded and weakened |3.2.B1b| | 1 |
| Headlamp at least one does not illuminate on main beam bike stop when main beam is switched on |1.2.2a|ii|| | 1 |
| Front Brake caliper|s| securing bolt|s| loose sliding pin |3.2.A1j| | 1 |
| Upper Rear suspension bush has excessive free play shock |2.4.A2a|i|| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| All direction indicators adversely affected by the operation of another lamp front and rear plusing not flashing (4.4.3 (b)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Headlamp not working on main beam dip switch fitted but bulb is there (4.1.1 (a) (ii)) | 1 |
| Front Brake fluid reservoir fluid not visible deteriated glass (1.1.10 (d) (iii)) | 1 |
| Rear Brake fluid reservoir fluid not visible detereated glass (1.1.10 (d) (iii)) | 1 |
| Nearside Rear Brake lever pivot has excessive free play (1.1.1 (b)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Front Brake lagging in operation (1.2.1 (d)) | 1 |
| Rear Valve stem seriously damaged not hold air (5.2.3 (j)) | 1 |
| Fuel hose leaking (6.1.3 (b) (i)) | 1 |
| Front All direction indicators light intensity significantly reduced (4.4.3 (a)) | 1 |
| Brake hose excessively deteriorated | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Direction indicator lens defective such that the emitted light is adversely affected l/h front indicator lens broken (4.4.1 (b) (ii)) | 1 |
| Direction indicator lens defective such that the emitted light is adversely affected r/h front indicator lens broken (4.4.1 (b) (ii)) | 1 |
| Brake excessively binding front brake binding (1.2.1 (f)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake lever so insecure that the brake cannot be readily applied brake lever bolt loose insecure (1.1.2 (e) (ii)) | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level brake reserviour glass broken and leaking (1.1.10 (d) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak fitted with a gaiter and still fluid down the outside of gaiter (5.3.2 (b)) | 1 |
| Headlamp aim projected beam image obviously incorrect no pattern at all (4.1.2 (c)) | 1 |
| Nearside Front Forks excessively corroded (2.2.2 (d) (i)) | 1 |
| Offside Front Forks excessively corroded (2.2.2 (d) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Stop lamp emits other than a steady red light intermitant then goes out (4.3.3 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Stop lamp not working Rear brake (4.3.1 (a) (ii)) | 1 |
| Riders seat insecure does not lock down (6.2.5 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Motorcycle structure inadequately repaired such that structural rigidity is significantly reduced side panel (6.1.1 (d) (i)) | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure speedometer housing (6.1.1 (b) (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 |
| Shock absorber has a serious fluid leak Fork legs pitted (5.3.2 (b)) | 1 |