| Most common failures | No# failures |
|---|
| Registration plate issues | 17 |
| Rear reflector on motorcycle missing |1.4.1| | 15 |
| Headlamp aim out of alignment | 12 |
| 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| | 4 |
| Registration plate lamp issues | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Lower Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Steering lock stop maladjusted |2.1.3| | 1 |
| Nearside Outer Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Stop lamp not working from front brake |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Stop lamp remains on when the brake is released (1.3.1e) | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Stop lamp remains on when the brake is released (1.3.1e) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Exhaust silencer likely to become detached baffles insecure |8.1.1 |b| |ii|| | 1 |
| Offside Rear Direction indicator incorrect colour white light |1.5.1b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp not tested due to stop light |1.1.3b| | 1 |
| Handlebar handgrip not secure to handlebars. n/side loose coming off bars |2.1.1c| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Front Brake hose leaking (1.1.12 (c)) | 1 |
| Stop lamp not working rear brake light (4.3.1 (a) (ii)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Exhaust has a major leak of exhaust gases Manifold bolt missing (6.1.2 (a)) | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Upper Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Throttle operating incorrectly throttle cables being pulled tight on left hand lock by frame. Incorrect routing possible. |6.2.7 |a| |i|| | 1 |