| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 30 |
| Registration plate issues | 29 |
| Rear reflector on motorcycle missing |1.4.1| | 22 |
| 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 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Registration plate lamp issues | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| 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 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Brake caliper leaking and braking performance affected |1.1.16 |b| |ii|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Direction indicators not working All |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Rear Lower Exhaust mounting missing |7.1.1c| | 1 |
| Offside Rear Lower Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Vehicle identification number not legible |0.2 |b|| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Horn not working |1.7.3a| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Brake component modification unsafe caliper is rubbing on disc (1.1.21 (d) (i)) | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Handlebar mounting so insecure that steering is adversely affected (2.2.1 (a) (ii)) | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Rear Lower Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Offside Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Suspension arm pin or bush excessively worn Suspension arm bushes have excessive free play (5.3.4 (a) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |