| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Registration plate issues | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 2 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Rear Brake pedal is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| 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 position lamp incorrect colour yellow |1.1.2a| | 1 |
| Nearside Indicator switch insecure |1.5.4| | 1 |
| Nearside Headlamp switch insecure |1.2.4| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Offside Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake disc fractured |1.1.14 |a| |ii|| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Indicator tell tale not operating correctly |1.5.2| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Horn missing |1.7.1| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |