| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 10 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Headlamp insecure |1.2.3b| | 2 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Horn not working |1.7.3a| | 2 |
| Stop lamp not working front control (4.3.1 (a) (ii)) | 1 |
| Offside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Horn not loud enough to be heard by another road user affected by other equipment |1.7.3a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Horn not loud enough to be heard by another road user Due to flat or defective battery |1.7.3a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Rear position lamp incorrect colour |1.1.2b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Rear suspension component seized |2.4A2a|ii|| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Handlebar retaining device loose |2.2.1 |b| |i|| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Front Upper Indicator switch defective |1.5.4| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Registration plate issues | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear wheel has a missing wheel stud|s| |4.2.3a| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Nearside Front position lamp insecure |1.1.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |