| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 41 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Registration plate lamp issues | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Registration plate issues | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Horn not working |1.7.3a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Nearside Front Direction indicators not working |1.5.1c| | 4 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Headlamp insecure |1.2.3b| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Nearside Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp aim beam image kick up to the offside Headlamp mask fitted during test |1.6| | 1 |
| Headlamp aim beam image kick up to the offside Headlamp mask fitted on test |1.6| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear reflector on motorcycle obscured (1.4.1) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Centre Rear Rear reflector on motorcycle missing (1.4.1) | 1 |
| Rear Roller brake test indicates a severely juddering brake (3.3.A1b) | 1 |
| Rear wheel bearings have excessive free play (2.4.A.2c) | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort (3.3.A1c) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute (1.5.1c) | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute (1.5.1c) | 1 |
| Suspension component has excessive wear or free play Suspension arm (swingarm) bearings (5.3.3 (d)) | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Centre Rear Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Exhaust is leaking and excessively noisey Centre to rear joint |7.1.1b| | 1 |
| Clutch lever shortened so it cannot be readily operated (6.2.7 (b)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Pillion Footpeg |6.2.1h| | 1 |
| Offside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Riders footpeg |6.2.1h| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Pillion Footpeg |6.2.1h| | 1 |
| Stop lamp does not illuminate immediately a brake applies Rear Control |1.3.1a| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Nearside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Nearside 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 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Rear Lower Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Direction indicators not working N/S |1.5.1c| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Brake disc fractured |1.1.14 |a| |ii|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Brake pedal has insufficient reserve travel piston sticking in m/cylinder (1.1.2 (a)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Stop lamp not working With hand brake lever (4.3.1 (a) (ii)) | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Road spring mounting so insecure that control of the motorcycle is likely to be adversely affected |5.3.1 |a| |ii|| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Front Front wheel bearings have excessive free play only in one spot, suggest bearing cage is dammaged |2.3.5b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Brake fluid not visible (1.1.10 (d) (iii)) | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp does not illuminate immediately a brake applies brake pedal |1.3.1a| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake pedal anti-slip provision missing (1.1.2 (c)) | 1 |
| Brake pedal is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Offside Rear Footrest missing pillion peg snapped (6.2.12 (a)) | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |