| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 19 |
| Headlamp aim out of alignment | 13 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Registration plate issues | 6 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Front Direction indicator not working |1.5.1c| | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Front position lamp incorrect colour |1.1.2a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Position lamp adversely affected by the operation of another lamp |4.2.3 |b|| | 1 |
| Stop lamp not working when using front brake |4.3.1 |a| |ii|| | 1 |
| Stop lamp damaged and function impaired front |1.3.3a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Front Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Fuel system component leaking Bottom of carb |6.1.3 |b| |i|| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride rear brake lever pivot lock nut missing |6.2.1h| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake switch fault |1.3.1a| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Rear Gradient brake test indicates a binding brake |3.3.D1c| | 1 |
| Rear Brake cable has a significantly damaged outer casing. |3.2.A1b| | 1 |
| Offside Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Stop lamp does not illuminate immediately a brake applies no brake light |1.3.1a| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies no brake light |1.3.1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Position lamp switch does not operate in accordance with the requirements (4.2.2 (a)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Front Brake caliper has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 1 |
| Rear Brake cable insecure | 1 |
| Rear Brake cable has restricted free movement (1.1.15 (e)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Direction indicator incorrect colour both (4.4.3 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central Locking devices not correctly fitted which may make the motor bicycle dangerous to ride stand |6.2.1h| | 1 |
| Front Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Stop lamp obscured |1.3.1c| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Horn not working |1.7.3a| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Brake cable knotted brake cable insecure |3.2.A1b| | 1 |
| Front suspension fouling which affects the movement of the front suspension. front fairing touching front forks |2.3.6a| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front 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 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Brake lever is inoperative |3.1.3c| | 1 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |