| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 49 |
| Registration plate issues | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear 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 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Horn not working |1.7.3a| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Windscreen wiper does not clear the windscreen effectively | 1 |
| Offside Parking brake inoperative on one side |1.4.1 |a|| | 1 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 1 |
| Nearside Front Service brake excessively fluctuating |1.2.1 |e|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort 30kgs. fluctuation |3.3.A1d| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Exhaust mounting missing |7.1.1c| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar Heated grip turning on handle bar |loose| |2.2.1 |d| |ii|| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Stop lamp not working Brake switch not working (4.3.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Nearside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 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 |
| 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|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |