| Most common failures | No# failures |
|---|
| Registration plate issues | 13 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Horn not working |1.7.3a| | 5 |
| Headlamp aim out of alignment | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Horn missing |1.7.1| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Rear Brake pedal insecure |3.1.2a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front An item not tested |Manual| | 1 |
| Rear An item not tested |Manual| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Front Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride steering stem nut |6.2.1h| | 1 |
| Direction indicator missing all |1.5.1a| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Offside Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Horn missing |1.7.1| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Outer Front Upper Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Lower Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Rear Lower Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp aim not tested no detectable pattern (4.1.2 (b)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock front mudguard (2.1.4 (a)) | 1 |
| Central Rear Lower Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak FRONT NEARSIDE FORK SEALS LEAKING EXCESSIVELY. (5.3.2 (b)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |