| Most common failures | No# failures |
|---|
| Registration plate issues | 22 |
| Rear reflector on motorcycle missing |1.4.1| | 14 |
| Rear reflector missing (4.8.2 (a) (ii)) | 7 |
| Horn not working |1.7.3a| | 6 |
| Headlamp aim out of alignment | 6 |
| Registration plate lamp issues | 4 |
| Horn missing |1.7.1| | 4 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Front Horn not working (7.7 (a) (ii)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Handlebar mounting clamp loose |2.1.1a| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Fork yoke insecure steering stem centre nut loose (2.2.2 (d) (i)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Direction indicator missing all indicators missing |1.5.1a| | 1 |
| Rear Wheel spoke excessively loose multiple spokes loose |4.2.1b| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Nearside Front Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp not working From rear brake |4.3.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |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 |
| Central Front Upper Headlamp missing |1.2.3a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Front Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Central Front Lower Horn not working |1.7.3a| | 1 |
| Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear reflector on motorcycle deteriorated and function impaired |1.4.2a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Brake component modification unsafe Aftermarket front brake lever (1.1.21 (d) (i)) | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Rear Suspension arm attachment bracket/mounting insecure Lower link bolt |5.3.3 |a| |i|| | 1 |
| Nearside Rear Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Stop lamp does not illuminate immediately a brake applies not working |1.3.1a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on not working |1.1.3a| | 1 |
| Front Brake performance not tested (1.2.1 (g)) | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake |1.3.1a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Direction indicator missing all |1.5.1a| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |