| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 32 |
| Registration plate issues | 11 |
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Horn not working |1.7.3a| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Central Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Brake pedal insecure |1.1.2 |e| |i|| | 1 |
| Horn missing |1.7.1| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp obscured |1.3.1c| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Handlebar mounting clamp bolt missing split pin missing |2.1.1a| | 1 |
| Offside Handlebar mounting clamp bolt missing split pin missing |2.1.1a| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| 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 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Rear suspension component loose |2.4.A.1a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 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 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Lower 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 |
| Central Rear Outer Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Front Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Fuel pipe leaking (7.2.1a) | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Nearside Rear Fuel system component leaking excessively or a risk of fire fuel dripping on silencer assembly |6.1.3 |b| |ii|| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake component insecure (1.1.21 (c)) | 1 |
| Rear Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) | 1 |
| Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) | 1 |
| Steering column top bearing excessively worn headstock bearings (2.2.2 (b)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |