| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 54 |
| Registration plate issues | 44 |
| Headlamp aim out of alignment | 39 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 22 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 21 |
| Headlamp aim beam image kick up to the offside |1.6| | 12 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 11 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Registration plate lamp issues | 7 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 5 |
| Nearside Rear Direction indicator not working |1.5.1c| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 5 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 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 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Offside Rear Direction indicator not working |1.5.1c| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Front position lamp missing |1.1.1a| | 3 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Horn not working |1.7.3a| | 2 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear 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| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Central Rear Upper Stop lamp not working rear brake light not working - have clean and oiled micro switch to correct as sticky (4.3.1 (a) (ii)) | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Offside Front Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Vehicle identification number not permanently displayed |6.3.5a| | 1 |
| Rear Motorcycle structure excessively damaged Rear subframe has snapped on both sides of the bike |6.1.1a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Stop lamp not working Front brake (4.3.1 (a) (ii)) | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Centre Rear Inner Exhaust mounting does not fully support the exhaust system frame work cracked |7.1.1.c| | 1 |
| Centre Rear Seat insecure dose not lock down correctly |6.2.1a| | 1 |
| Centre Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Front Front position lamp missing |1.1.1a| | 1 |
| Centre Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear reflector on sidecar missing |1.4.1| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam Opposite lamp illuminates, illuminates high beam |4.1.3 |b|| | 1 |
| Dipswitch does not operate immediately when selected on main beam Opposite lamp illuminates, illuminates low beam |4.1.3 |b|| | 1 |
| Centre Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Brake master cylinder insecure (1.1.10 (c)) | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Front Stop lamp not working front brake lever operation |4.3.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Rear Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 1 |
| Central Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Steering lock stop missing |2.1.3| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Centre Rear Upper Footrest missing |6.2.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Centre Front Upper Headlamp aim beam image kick up to the offside (1.6) | 1 |
| Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on (1.1.3a) | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Stop lamp not working Front brake operation. (4.3.1 (a) (ii)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on not working |1.1.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies brake lever switch inop |1.3.1a| | 1 |
| Nearside Front All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Throttle operating incorrectly rev up in right hand lock |6.2.7 |a| |i|| | 1 |
| Stop lamp does not illuminate immediately a brake applies front lever |1.3.1a| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |