| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 35 |
| Front wheel bearings are excessively rough |2.3.5b| | 25 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 24 |
| Front wheel bearings have excessive free play |2.3.5b| | 22 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 21 |
| Headlamp switch faulty |1.2.4| | 19 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 18 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 17 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 15 |
| Registration plate issues | 15 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Headlamp aim not tested |1.6| | 13 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 12 |
| Stop lamp remains on when the brake is released |1.3.1e| | 12 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Front suspension has inadequate damping effect. |2.3.6c| | 11 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Headlamp deteriorated and function impaired |1.2.3a| | 10 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 8 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 8 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 8 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 7 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 7 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 7 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 7 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 7 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 7 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 6 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 5 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 4 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 4 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 4 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 3 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 3 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 3 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Offside Rear Direction indicator insecure |1.5.3b| | 3 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Headlamp switch insecure |1.2.4| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Front mudguard insecure |2.3.7| | 2 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 2 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Rear position lamp insecure |1.1.1c| | 2 |
| Brake performance not tested |3.3| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 2 |
| Rear suspension component cracked |2.4.A.1a| | 2 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Brake pipe excessively corroded | 2 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Steering linkage has excessive free play |2.2.2| | 2 |
| Stop lamp missing |1.3.3a| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |