| Most common failures | No# failures |
|---|
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Headlamp aim out of alignment | 8 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Registration plate issues | 5 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 5 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Front position lamp incorrect colour |1.1.2a| | 3 |
| Parking brake: efficiency below requirements |3.7.B.7| | 3 |
| Hazard warning switch faulty |1.4.B.1d| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Front Headlamp incorrect colour |1.2.1| | 2 |
| Rear parking brake recording little or no effort | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Service brake: efficiency below requirements |3.7.B.7| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Rear position lamp incorrect colour |1.1.2b| | 2 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Hazard warning switch inoperative |4.4.2 |a| |ii|| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Offside Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Mechanical brake component locking device insecure rear flexy hose mount (3.5.1l) | 1 |
| Mechanical brake component locking device insecure rear n/s and o/s flexy hoses mountings (3.5.1l) | 1 |
| Steering movement excessively notchy with the wheel raised (2.2.1b) | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Offside Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Offside Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Offside Rear Lower Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Rear Lower Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Lower Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Parking brake lever has no reserve travel (3.1.6b) | 1 |
| Parking brake lever ratchet mechanism is broken (3.1.5) | 1 |
| Stop lamp(s) not working foot control (4.3.1 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. (3.3.A2b) | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Stop lamp does not illuminate immediately a brake applies Rear pedal |1.3.1a| | 1 |
| Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Brake cable has wires broken and is significantly weakened |3.5.1b| | 1 |
| Brakes imbalanced across an axle | 1 |
| Offside Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Nearside Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Brake pedal attachment screws loose |3.1.2b| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Offside Rear Exhaust has a major leak of exhaust gases silencer. (6.1.2 (a)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Suspension arm corroded and seriously weakened swing arm rusted through/ holed. (5.3.3 (b) (i)) | 1 |
| Rear Brake performance not tested pedal failure. (1.2.1 (g)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear wheel spindle securing nut locking device insecure pinch bolt loose |2.4.A.2b| | 1 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Rear Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Stop lamp emits other than a steady red light |1.2.1e| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Offside Stop lamp emits other than a steady red light |1.2.1e| | 1 |
| Rear Brake pedal has insufficient reserve movement |3.3.A.5| | 1 |
| Service brake: efficiency below requirements |3.7.C.1a| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Offside Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Offside Front Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Rear Hydraulic brake calliper inadequately mounted fouling on the wheel |1.1.16 |c| |i|| | 1 |
| Nearside Rear Outer Suspension arm ball joint excessively worn upper rose joint excessive play (5.3.4 (a) (i)) | 1 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Rear Stop lamp|s| all not working |4.3.1 |a| |iii|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 1 |
| Parking brake lever has excessive movement indicating incorrect adjustment no reserve travel |1.1.6 |c|| | 1 |
| Front Service brake efficiency below requirements |1.2.2 |a| |i|| | 1 |
| Rear Service brake efficiency below requirements |1.2.2 |a| |i|| | 1 |
| Offside Front Lower Footrest insecure floor loose |6.2.12 |a|| | 1 |
| Service brake efficiency less than 50% of the required value |1.2.2 |a| |ii|| | 1 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Sidecar wheel bearings have excessive free play |5.2.3c| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside front brake juddering severely |3.7.A.2b| | 1 |
| Offside front brake grabbing severely |3.7.A.2b| | 1 |
| Offside Rear rear brake juddering severely |3.7.A.5b| | 1 |
| Front Service brake juddering severely |3.7.C.2| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Stop lamp not working brake control 2 |1.2.1b| | 1 |
| Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Rear Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Nearside Rear brake caliper leaking |3.6.A.1| | 1 |
| Front Steering damper gland failed and leaking oil |2.2.C.1e| | 1 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear Brake pipe leaking |3.6.A.1| | 1 |
| Rear Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Offside Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Rear Lower Exhaust system insecure (6.1.2 (a)) | 1 |
| Central Rear Lower Exhaust has a major leak of exhaust gases brocken on center box off side (6.1.2 (a)) | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Nearside Front Upper Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Upper Direction indicators not working |1.5.1c| | 1 |
| Horn not working |1.7.3a| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |