| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 34 |
| Rear reflector on motorcycle missing |1.4.1| | 19 |
| Rear reflector missing (4.8.2 (a) (ii)) | 19 |
| Registration plate issues | 11 |
| Horn not working |1.7.3a| | 10 |
| Horn not working (7.7 (a) (ii)) | 8 |
| Horn not working (7.7 (a)) | 8 |
| Horn not working |7.7 |a| |ii|| | 7 |
| Rear reflector missing |4.8.2 |a| |ii|| | 7 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 7 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Stop lamp remains on when the brakes are released | 3 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 3 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 2 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition Baffle not fitted |8.1.1 |a|| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Central Front Roller brake test indicates excessive fluctuation of brake effort excessive brake fluctuation and juddering on rollers and when road tested |3.3.A1d| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure |6.1.1 |b| |i|| | 1 |
| Central Front Horn sound not in accordance with requirements corrode wiring connecter (7.7 (c)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Brake disc significantly and obviously worn 4mm (minimum is 4.5mm) (1.1.14 (a) (i)) | 1 |
| Rear Brake disc fractured multiple cracks (1.1.14 (a) (ii)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Motorcycle structure joining/attachment plate or fastening insecure side stand (6.1.1 (b) (i)) | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Footrest insecure (6.2.12 (a)) | 1 |
| Rear Footrest insecure footrests seized (6.2.12 (a)) | 1 |
| Rear Brake disc insecure (1.1.14 (a) (ii)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Headlamp light source and lamp not compatible led fitted to halogen lamp (4.1.4 (c)) | 1 |
| Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Brake fluid contaminated (1.8 (a)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Central Front Horn not working (7.7 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Fork yoke insecure |2.2.2 |d| |i|| | 1 |
| Offside Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Central Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Horn control defective |1.7.2a| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 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 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Steering operation restricted in free movement from lock to lock due to damper (2.1.4 (c)) | 1 |
| Offside Rear 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 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Steering operation restricted in free movement from lock to lock Steering damper position (2.1.4 (c)) | 1 |