| Most common failures | No# failures |
|---|
| Registration plate issues | 11 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Headlamp aim out of alignment | 4 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride split pin missing wheel |6.2.1h| | 1 |
| Offside Front position lamp incorrect colour |1.1.2a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Nearside Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| 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|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Centre Upper Horn not working |1.7.3a| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced spilt pin missing (6.1.1 (b) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Rear Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Fuel tank insecure Insecure at front bush, bush appears displaced (6.1.3 (a) (i)) | 1 |
| Offside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |