| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 41 |
| Registration plate issues | 34 |
| Headlamp aim out of alignment | 19 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Registration plate lamp issues | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Rear reflector missing |4.8.2 |a| |ii|| | 7 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| 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| | 4 |
| Offside Rear Direction indicators not working |1.5.1c| | 4 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| 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|| | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Horn not working |1.7.3a| | 2 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Front All direction indicators missing |4.4.1 |a| |ii|| | 2 |
| 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)) | 2 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Brake pedal mounting insecure |3.1.2a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Drive chain sprocket so loose it is likely to fail two sprocket fixings broken/missing. |6.1.7 |c| |ii|| | 1 |
| Direction indicator not working all |1.5.1c| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Drive chain excessively tight chain much to tight |6.2.1d| | 1 |
| Offside Direction indicator insecure |1.5.3b| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear All direction indicators missing |4.4.1 |a| |ii|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp light source and lamp not compatible halogen lamp converted to HID (4.1.4 (c)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Front Shock absorber has a serious fluid leak Both side (5.3.2 (b)) | 1 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |