| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 110 |
| Registration plate issues | 96 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 36 |
| Registration plate lamp issues | 25 |
| Headlamp aim beam image kick up to the offside |1.6| | 24 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 20 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 20 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 20 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 17 |
| Rear reflector on motorcycle missing |1.4.1| | 17 |
| Front wheel bearings are excessively rough |2.3.5b| | 15 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 15 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 12 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 10 |
| Horn not working |1.7.3a| | 9 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 9 |
| Drive chain excessively loose |6.2.1d| | 9 |
| Nearside Front Direction indicator not working |1.5.1c| | 9 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 9 |
| Nearside Rear Footrest missing |6.2.1a| | 8 |
| Offside Rear Footrest missing |6.2.1a| | 8 |
| Nearside Rear Direction indicator not working |1.5.1c| | 8 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Offside Rear Direction indicator not working |1.5.1c| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Nearside Front Direction indicators not working |1.5.1c| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Offside Front Direction indicator not working |1.5.1c| | 5 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 5 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 5 |
| Drive chain worn to excess |6.2.1e| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 5 |
| 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| | 5 |
| Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Rear Brake pedal is inoperative |3.1.3c| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 4 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 4 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Rear Footrest missing |6.2.1a| | 3 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 3 |
| Offside Rear Direction indicators not working |1.5.1c| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 3 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Steering lock stop maladjusted |2.1.3| | 2 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Direction indicator not working |1.5.1c| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Footrest missing |6.2.1a| | 2 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Rear Brake excessively binding |1.2.1 |f|| | 2 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Rear wheel insecure |4.2.3b| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Front mudguard insecure |2.3.7| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 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| | 2 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |