| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 39 |
| Registration plate issues | 15 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| 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| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Horn not working |1.7.3a| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Exhaust mounting missing |7.1.1c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear Roller brake test indicates a sticking brake pedal not returning |3.3.A1a| | 1 |
| Rear suspension bush has excessive free play forward bush of relay link worn to excess |2.4.A2a|i|| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Front Fuel hose leaking Hose leaking at tap. clip loose (6.1.3 (b) (i)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Motorcycle structure joining/attachment plate or fastening insecure footpeg carrier (6.1.1 (b) (i)) | 1 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 1 |
| Front Brake fluid significantly below minimum mark |1.1.10 |d| |ii|| | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Headlamp light intensity severely reduced dipped beam (4.1.4 (a)) | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Central Front All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Nearside Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Wheel fractured significantly reducing the original strength |4.2.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Fuel system component insecure hose from fuel tap, clip loose and pipe leaking |7.2.1b| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp(s) all not working front and rear (4.3.1 (a) (iii)) | 1 |
| Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Offside Rear Brake cable damaged cable wires broken (1.1.15 (a)) | 1 |
| Rear Brake drum|s| cracked |3.2.A1g| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Headlamp aim projected beam image obviously incorrect wrong bulb fitted (4.1.2 (c)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Fuel system component leaking from fuel tap (6.1.3 (b) (i)) | 1 |
| Central Rear Lower Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear reflector likely to become detached (4.8.1 (b) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp AFFECTED BY OPERATION OF INDICATORS. (4.2.3 (b)) | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Headlamp aim projected beam image obviously incorrect low beam (4.1.2 (c)) | 1 |
| Nearside Front Horn not working (7.7 (a)) | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Rear Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Rear Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Inner Front Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Centre Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |