| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 26 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 11 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 9 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Offside Front Direction indicator not working |1.5.1c| | 6 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 6 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Horn not working |1.7.3a| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Nearside Exhaust excessively deteriorated |7.1.1a| | 3 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Registration plate issues | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Brake hose excessively deteriorated | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Brake caliper leaking (1.1.16 (b) (i)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Brake disc|s| cracked |3.2.A1g| | 1 |
| Upper Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Offside Front Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Rear position lamp insecure |1.1.1c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Centre Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Centre Front Direction indicator missing |1.5.1a| | 1 |
| Outer Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Front Brake component is severely distorted |3.1.5| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Stop lamp not working front brake |4.3.1 |a| |ii|| | 1 |
| Front suspension assembly component missing |2.3.1| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Front suspension assembly component excessively bent |2.3.1| | 1 |
| Upper Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Upper Fuel system component insecure |7.2.1b| | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Offside Front Brake linkage excessively damaged |3.2.A1c| | 1 |
| Brake linkage excessively damaged |3.2.A1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Throttle operating incorrectly switch/throttle gear loose and bars |6.2.1f| | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Stop lamp not working needs adjusting (4.3.1 (a) (ii)) | 1 |
| Offside Front Brake disc contaminated oil from fork seal (1.1.14 (b)) | 1 |
| Brake performance not tested front covered in oil-rear-pads not located correctly (1.2.1 (g)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |