| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Registration plate issues | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| 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| | 5 |
| Rear Brake excessively binding (1.2.1 (f)) | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Drive belt excessively tight |6.2.1d| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Registration plate lamp issues | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Rear Brake fluid significantly below minimum mark |1.1.10 |d| |ii|| | 1 |
| Drive belt excessively tight |6.1.7 |k| |i|| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 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 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Brake pedal cannot be released smoothly seized pivot /pin |3.1.3d| | 1 |
| Rear Stop lamp remains on when the brake is released rear brake |1.3.1e| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock front spot lights (2.1.4 (b)) | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Nearside Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Stop lamp not working not working from front lever (4.3.1 (a) (ii)) | 1 |
| Offside Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Rear Brake lever pivot excessively tight (1.1.1 (a)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Offside Rear Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake caliper inadequately mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Front Brake fluid contaminated |1.8 |a|| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Brake performance unable to be tested (1.2.1 (g)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Lower Drive belt so worn it is likely to fail Drive belt has hole in it (6.1.7 (c) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Central Rear Upper Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Central Rear Lower Brake excessively binding (1.2.1 (f)) | 1 |