| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 22 |
| Registration plate issues | 12 |
| Headlamp aim beam image kick up to the offside |1.6| | 12 |
| Headlamp aim out of alignment | 11 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| 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| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Rear Brake disc|s| securing bolt|s| loose |3.2.A1g| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Upper Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Headlamp aim beam image kick up to the offside Has European headlamp fitted, beam pattern incorrect |1.6| | 1 |
| Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Front Direction indicator obscured |1.5.1a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Steering lock stop missing |2.1.3| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Rear Direction indicator obviously incorrectly positioned not correctly positioned should be min 180 mm apart (4.4.3 (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 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Centre Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Nearside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |