| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 8 |
| Registration plate issues | 6 |
| Nearside Rear Direction indicator not working |1.5.1c| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Nearside Rear Direction indicators not working |1.5.1c| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Horn not working |1.7.3a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Rear Direction indicator not working |1.5.1c| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear position lamp incorrect colour |1.1.2b| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Front Direction indicators not working |1.5.1c| | 2 |
| Nearside Indicator tell tale not functioning |1.5.2| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front wheel bearings have excessive free play (2.3.5b) | 1 |
| Rear Roller brake test indicates a sticking brake (3.3.A1a) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Centre Front Upper Steering headbearing has excessive free play (2.2.2) | 1 |
| Stop lamp remains on when the brake is released (1.3.1e) | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Direction indicator not working front and rear |1.5.1c| | 1 |
| Nearside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Front All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear wheel has a missing wheel nut|s| |4.2.3a| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Brake pedal attachment screws loose |3.1.2b| | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Rear wheel insecure |4.2.3b| | 1 |
| Rear Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Steering operation restricted in free movement from lock to lock no stop lock |2.1.4 |c|| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Central Front Direction indicators not working |1.5.1c| | 1 |
| Brake master cylinder has a seized master cylinder pivot. |3.2.B5| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Front Brake component insecure brake lever securing nut missing |1.1.21 |c|| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |