| Most common failures | No# failures |
|---|
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 18 |
| Headlamp aim out of alignment | 18 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 14 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 11 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 11 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 8 |
| Brake hose excessively deteriorated | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 6 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 5 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Registration plate issues | 5 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 5 |
| Riders seat insecure |6.2.1a| | 5 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Fuel system component insecure |7.2.1b| | 4 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 4 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Offside Front Brake disc|s| insecure |3.2.A1g| | 3 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Front mudguard insecure |2.3.7| | 2 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Brake disc|s| insecure |3.2.A1g| | 2 |
| Front Brake pipe inadequately supported |3.2.B2b| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Nearside Front Brake disc|s| insecure |3.2.A1g| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Front mudguard insecure |2.3.7| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Rear position lamp obscured more than 50% |1.1.1d| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Offside Brake pedal mounting insecure |3.1.2a| | 1 |
| Offside Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Brake disc|s| excessively worn excessive movement in discs |3.2.A1l| | 1 |
| Front Brake master cylinder leaking hydraulic fluid from slight glass window |3.2.B1e| | 1 |
| Offside Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Rear Rear spring fractured |2.4.A1b|i|| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Offside Front Upper Brake master cylinder has a seized master cylinder pivot. |3.2.B5| | 1 |
| Steering operation impeded by a fairing |2.1.4 |e|| | 1 |
| Rear Brake master cylinder defective but brake still operating |1.1.10 |b| |i|| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease discs covered in oil |3.2.A1k| | 1 |
| Nearside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Centre Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Brake master cylinder has a seized master cylinder pivot. |3.2.B5| | 1 |
| Centre Rear Lower Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Lower Brake locking device missing |3.2.A1e| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp not working On both front and rear levers (4.3.1 (a) (ii)) | 1 |
| Sidecar structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced (6.1.1 (b) (ii)) | 1 |
| Steering damper insecure (2.1.4 (d) (i)) | 1 |
| Brake master cylinder has a seized master cylinder pivot. |3.2.B5| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Shock absorber has a serious fluid leak Right |5.3.2 |b|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front suspension assembly component cracked |2.3.1| | 1 |
| Nearside Front Brake component leaking fluid |3.2.B4| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| An item not tested |Manual| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Registration plate lamp issues | 1 |
| Front Brake pipe excessively damaged |3.2.B2a| | 1 |
| Front Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Central Front Brake hose leaking |1.1.12 |c|| | 1 |
| Roller brake test brake efficiency less than 27.5% overall |1.2.2 |a| |ii|| | 1 |
| Centre Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Sidecar direction indicator not working |1.5.1c| | 1 |
| Rear spring fractured |2.4.A1b|i|| | 1 |
| Nearside Rear Lower Sidecar rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front Brake master cylinder leaking loose fitting on master cylinder |1.1.10 |b| |ii|| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |