| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 83 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 45 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 43 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 42 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 37 |
| Stop lamp remains on when the brake is released |1.3.1e| | 37 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 26 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 23 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 21 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 20 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 17 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 17 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 14 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 14 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 13 |
| Registration plate issues | 13 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 13 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 11 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 11 |
| Throttle operating incorrectly |6.2.1f| | 10 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 10 |
| Stop lamp remains on when the brakes are released | 10 |
| Front Brake excessively binding (1.2.1 (f)) | 9 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 8 |
| Rear Position lamp not working |4.2.1 |a|| | 8 |
| Horn not working |1.7.3a| | 8 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 8 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 8 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 7 |
| Rear Brake disc|s| cracked |3.2.A1g| | 7 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 7 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 6 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 6 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 6 |
| Brake hose excessively deteriorated | 5 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 5 |
| Rear Brake excessively binding |1.2.1 |f|| | 5 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 5 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 5 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 5 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 4 |
| Brake pipe excessively corroded | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 4 |
| Offside Front Brake disc|s| insecure |3.2.A1g| | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 4 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 4 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Nearside Front Direction indicator not working |1.5.1c| | 4 |
| Front Brake disc|s| insecure |3.2.A1g| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Brake performance not tested |3.3| | 3 |
| Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Front brake disc in such a condition that it is seriously weakened | 3 |
| An item not tested |Manual| | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 3 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 3 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 3 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 3 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 3 |
| Front Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |