| Most common failures | No# failures |
|---|
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Headlamp aim out of alignment | 5 |
| Registration plate issues | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Offside Rear Direction indicators not working |1.5.1c| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Horn sounds harsh or grating |1.7.3c| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Handlebar mounting clamp loose |2.1.1a| | 2 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Brake hose damaged | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Centre Front Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Centre Front Riders seat insecure |6.2.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear wheel has a missing wheel nut|s| |4.2.3a| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Front Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Headlamp main beam affected by the operation of another lamp both lamp filaments lighting on main beam |1.2.2c| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Front Steering lock stop missing |2.1.3| | 1 |
| Front wheel insecure |4.2.3b| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 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 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Central Rear Inner Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Rear Outer Brake cable damaged (1.1.15 (a)) | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |