| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 11 |
| Registration plate issues | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear reflector missing |1.5.1a| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Nearside Front Front suspension assembly component loose |2.3.1| | 1 |
| Offside Front Front suspension assembly component loose |2.3.1| | 1 |
| Front Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Brake pipe union leaking fluid |3.2.B4| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Offside Handlebar cracked |2.1.1b| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Hazard warning switch missing |1.4.B.1d| | 1 |
| Rear Rear reflector missing |1.5.1a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Nearside Front Upper Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Horn not working |1.6.2a| | 1 |
| Front position lamp|s| missing |1.1.A.3a| | 1 |
| Rear position lamp|s| missing |1.1.A.3a| | 1 |
| Rear fog lamp switch insecure |1.3.1a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition |7.1.4| | 1 |
| Front Brake pedal has insufficient reserve movement |3.3.A.5| | 1 |
| Steering system fouling |2.2.D.2a| | 1 |
| Brake pipe inadequately supported |3.6.B.1| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Nearside Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Vehicle Identification Number not permanently displayed |6.3.5.a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Lower Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp remains on when the brake is released rear |1.3.1e| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Direction indicators affected by the operation of another lamp affected by horn |1.5.1c| | 1 |
| Floor brake test indicates a binding brake rear |3.3.C2c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Inner Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Stop lamp does not illuminate immediately a brake applies When front brake is applied |1.3.1a| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Stop lamp not working not working from front switch. cleaned switch now working. (4.3.1 (a) (ii)) | 1 |
| Handlebar grip not secure to handlebars. l/h (2.2.1 (f) (ii)) | 1 |
| Rear Service brake efficiency below requirements (1.2.2 (a) (i)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 1 |