| Most common failures | No# failures |
|---|
| Registration plate issues | 61 |
| Rear reflector on motorcycle missing |1.4.1| | 46 |
| Horn not working |1.7.3a| | 22 |
| Headlamp aim out of alignment | 19 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 19 |
| Rear reflector missing (4.8.2 (a) (ii)) | 16 |
| Horn missing |1.7.1| | 10 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Horn not working (7.7 (a) (ii)) | 9 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 9 |
| Front wheel bearings have excessive free play |2.3.5b| | 9 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 7 |
| Horn not working |7.7 |a| |ii|| | 7 |
| Rear reflector missing |4.8.2 |a| |ii|| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp aim not tested (4.1.2 (b)) | 4 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Horn not working |1.7.3a| | 3 |
| Registration plate lamp issues | 3 |
| Direction indicator missing |1.5.1a| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Brake lever insecure |3.1.2a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Wheel spoke missing |4.2.1b| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear reflector missing Added at the garage (4.8.2 (a) (ii)) | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies application |1.3.1a| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies on hand brake |1.3.1a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Fuel hose leaking (6.1.3 (b) (i)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Suspension component pin or bush excessively worn swinging arm bushes excess play . (5.3.4 (a) (i)) | 1 |
| Front Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Front Stop lamp not working Front brake switch missing |4.3.1 |a| |ii|| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Nearside Front Direction indicators not working direction indicators missing |1.5.1c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Stop lamp does not illuminate immediately a brake applies via front brake |1.3.1a| | 1 |
| Brake disc insecure rear brake disc mounting bolt missing (1.1.14 (a) (ii)) | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. |3.3.E1b| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Decelerometer brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Locking devices not correctly fitted which may make the motor bicycle dangerous to ride foot rest split pin. |6.2.1h| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Steering lock stop maladjusted |2.1.3| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Stop lamp remains on when the brake is released Switch on brake pedal stuck |1.3.1e| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Front Front wheel bearings have excessive free play (2.3.5b) | 1 |
| Throttle operating incorrectly doesn`t return |6.2.1f| | 1 |
| Front shock absorber seal failed and leaking oil Left hand fork |2.3.3| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease fork oil from fork seal |3.2.A1k| | 1 |
| Central Front Upper Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Front Lower Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Front Lower Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Drive chain fouling another component Chain link almost rubbed through |6.2.1d| | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front position lamp does not illuminate immediately when switched on |Dip Beam| |1.1.3a| | 1 |
| Front Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake caliper|s| insecure Brake boot missing |3.2.A1j| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Vehicle identification number not legible |6.3.5a| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Rear wheel insecure (4.2.3b) | 1 |
| Locking device(s) not correctly fitted which may make the motor bicycle dangerous to ride (6.2.1h) | 1 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Rear Lower Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Front position lamp obscured more than 50% |1.1.1d| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Rear Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Front Stop lamp missing (4.3.1 (a) (ii)) | 1 |
| Rear Wheel hub excessively worn rough when rotated (5.2.1 (b) (i)) | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Rear Wheel spoke excessively loose x 3 |4.2.1b| | 1 |
| Rear Position lamp showing white light to the rear Tail light lens broken (4.2.3 (a) (ii)) | 1 |
| Front Stop lamp not working Front brake light switch missing (4.3.1 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn Rear swingarm (5.3.4 (a) (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Horn not working - may be missing, location not found |1.7.3a| | 1 |
| Rear reflector on motorcycle incorrectly positioned excessively angled upwards |1.4.2d| | 1 |
| Central Front Horn not working (7.7 (a) (ii)) | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |