| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 97 |
| Registration plate issues | 28 |
| Registration plate lamp issues | 23 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 22 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 13 |
| Drive chain excessively loose |6.2.1d| | 13 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Rear reflector missing (4.8.2 (a) (ii)) | 10 |
| Horn not working |1.7.3a| | 7 |
| Drive chain excessively tight |6.2.1d| | 7 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 6 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 5 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 5 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Horn not working (7.7 (a)) | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Offside Front Footrest insecure |6.2.1a| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Chain guard insecure |6.2.1c| | 3 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 3 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 3 |
| 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 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Nearside Front Direction indicator insecure |1.5.3b| | 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 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Rear Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 2 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |