| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Handlebar deformed |2.1.1b| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Brake pedal attachment screws loose |3.1.2b| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Nearside Rear Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Nearside Rear Drive chain sprocket excessively loose |6.1.7 |c| |i|| | 1 |
| Front Brake lever has inadequate reserve travel (3.1.3b) | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Front position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Front position lamp does not face the front |1.1.1d| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Registration plate issues | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front suspension assembly component missing |2.3.1| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Centre Front Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |