| Most common failures | No# failures |
|---|
| Registration plate issues | 18 |
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Headlamp aim out of alignment | 8 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Nearside Steering lock stop ineffective |2.1.3| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Motorcycle structure cracked Rear subframe holding mudguard |6.1.1a| | 1 |
| Nearside Front Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Nearside Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Wheel fractured (5.2.2 (a)) | 1 |
| Front Brake disc fractured |1.1.14 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear Brake disc|s| securing bolt|s| missing mounting bolts |interference with caliper carrier| |3.2.A1g| | 1 |
| Rear wheel bearings are excessively tight |2.4.A.2c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Central Rear Upper Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |