| Most common failures | No# failures |
|---|
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Headlamp aim out of alignment | 12 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 11 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 11 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 9 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 9 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 8 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Front Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 4 |
| Riders seat insecure |6.2.1a| | 4 |
| 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| | 3 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Offside Front Brake disc|s| insecure |3.2.A1g| | 2 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Brake hose excessively deteriorated | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Headlamp switch faulty |1.2.4| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Brake hose damaged | 1 |
| Nearside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Offside Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Centre Front Upper Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Nearside Front Lower Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Offside Front Lower Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Nearside Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Handlebar mounting insecure rubber bushes worn |2.2.1 |a| |i|| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Front Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Front Brake hose which buldges |3.2.B4| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear reflector on sidecar missing |1.4.1| | 1 |
| Sidecar wheel bearings have excessive free play |5.2.3c| | 1 |
| Sidecar front position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Front Brake disc|s| excessively worn Disc bobbins worn |3.2.A1l| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Offside Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Throttle operating incorrectly |6.2.1f| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| An item not tested |Manual| | 1 |
| Front Brake disc|s| insecure o/s/front brake disc insecure |3.2.A1g| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking mudguard |6.1.1c| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Headlamp aim beam image too far to the left |1.6.4| | 1 |
| Front Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake disc|s| has excessive run out over 40kg imbalance |3.2.A1m| | 1 |
| Rear Brake pedal cracked |3.1.2c| | 1 |
| Front Brake disc|s| securing bolt|s| missing 3x circlips missing from both front discs |3.2.A1g| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Steering lock stop ineffective lights hitting tank |2.1.3| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Nearside All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Sidecar structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Centre Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front shock absorber seal failed and leaking oil front forks excessive leakage |2.3.3| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |