| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 39 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 20 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 16 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 14 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Steering headbearing has excessive free play |2.2.2| | 13 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 13 |
| Horn not working |1.7.3a| | 10 |
| Front wheel bearings have excessive free play |2.3.5b| | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 8 |
| Headlamp insecure |1.2.3b| | 7 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front wheel bearings are excessively rough |2.3.5b| | 6 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 6 |
| Exhaust excessively deteriorated |7.1.1a| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear Direction indicators not working |1.5.1c| | 4 |
| Indicator tell tale not functioning |1.5.2| | 4 |
| Front suspension has inadequate damping effect. |2.3.6c| | 4 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Registration plate issues | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 3 |
| Front Direction indicators not working |1.5.1c| | 3 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 3 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear position lamp insecure |1.1.1c| | 3 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Horn sounds harsh or grating |1.7.3c| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear position lamp damaged and function impaired |1.1.1b| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Front mudguard insecure |2.3.7| | 2 |
| Front Brake pipe excessively chafed |3.2.B2a| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Front mudguard insecure |2.3.7| | 2 |
| Front Direction indicator not working |1.5.1c| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front Headlamp insecure |1.2.3b| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Centre Steering headbearing has excessive free play |2.2.2| | 2 |
| Direction indicator not working |1.5.1c| | 1 |
| Offside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| An item not tested |Manual| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Lower Motorcycle structure excessively corroded chassis |6.1.1a| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Horn control defective |1.7.2a| | 1 |
| Rear Brake lever excessively corroded |3.2.A1c| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Nearside Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Rear Brake cable badly frayed |3.2.A1b| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Centre Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Rear position lamp insecure |1.1.1c| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Motorcycle structure excessively damaged center stand bent and not secure in up position, allowing contact with ground when cornering |6.1.1a| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Rear Rear wheel insecure |4.2.3b| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front wheel insecure |4.2.3b| | 1 |
| Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Front Lower Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |