| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 13 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 13 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 8 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 7 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 7 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Nearside Indicator tell tale not functioning |1.5.2| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Headlamp deteriorated and function impaired |1.2.3a| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Horn not working |1.7.3a| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Registration plate issues | 3 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Headlamp switch faulty |1.2.4| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Indicator tell tale not operating correctly |1.5.2| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Stop lamp emits other than a steady red light |1.3.1b| | 2 |
| Rear position lamp incorrect colour |1.1.2b| | 2 |
| Fuel cap sealing washer missing |7.2.2c| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear wheel insecure |4.2.3b| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Offside Indicator tell tale not operating correctly |1.5.2| | 2 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Offside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Offside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Brake hose excessively deteriorated | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Rear Brake lining|s| contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on both sides |1.1.3a| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired no pattern |1.2.3a| | 1 |
| Nearside Rear Rear suspension bush excessively deteriorated engine to swinging arm |2.4.A2a|i|| | 1 |
| Front Exhaust mounting missing |7.1.1c| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Offside Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Upper Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Lower Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 1 |
| Offside Front All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Brake performance not tested |3.3| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Rear Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Outer Front Lower Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. |3.3.E1b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Nearside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Position lamp switch does not operate in accordance with the requirements |4.2.2 |a|| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Nearside Front Upper Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Upper Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake cylinder severely corroded |3.2.B1b| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Offside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Nearside Brake lever insecure |3.1.2a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Front Headlamp switch faulty |1.2.4| | 1 |
| Inner Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Nearside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear suspension bush has excessive free play engine mount |2.4.A2a|i|| | 1 |
| Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Front An item not tested |Manual| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Nearside Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| An item not tested |Manual| | 1 |
| Front Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Stop lamp does not illuminate immediately a brake applies front- rear |1.3.1a| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |