| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Registration plate lamp issues | 6 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Registration plate issues | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 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 |
| Rear Brake master cylinder reservoir cap missing (1.1.10 (e)) | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Nearside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Stop lamp not working Both operations foot and hand |4.3.1 |a| |ii|| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Rear Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 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 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded caliper not releasing fully from brake disc,wheel rotation impeded |3.2.A1h| | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Stop lamp flickers when tapped lightly by hand |1.3.1d| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies stop switch |1.3.1a| | 1 |
| Central Rear Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Vehicle identification number not displayed |0.2 |a|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |