| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 105 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 32 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 28 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 25 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 21 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 19 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 18 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 16 |
| Headlamp aim beam image kick up to the offside |1.6| | 15 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 15 |
| Rear reflector on motorcycle missing |1.4.1| | 14 |
| Registration plate issues | 13 |
| Rear Brake excessively binding (1.2.1 (f)) | 12 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 12 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 10 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 9 |
| Stop lamp remains on when the brake is released |1.3.1e| | 8 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 8 |
| Stop lamp remains on when the brakes are released | 8 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 8 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 7 |
| Front Brake excessively binding (1.2.1 (f)) | 7 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 6 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Horn not working |1.7.3a| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Front position lamp incorrect colour |1.1.2a| | 5 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 5 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Offside Front Direction indicators not working |1.5.1c| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Offside Front Direction indicator not working |1.5.1c| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 3 |
| Rear Brake excessively binding |1.2.1 |f|| | 3 |
| Offside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Nearside Front Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 2 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Brake pedal cannot be released smoothly |3.1.3d| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Nearside Front position lamp incorrect colour |1.1.2a| | 2 |
| Offside Front position lamp incorrect colour |1.1.2a| | 2 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 2 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 2 |
| Registration plate lamp issues | 2 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Front Brake disc contaminated (1.1.14 (b)) | 2 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 2 |