| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 31 |
| Front wheel bearings are excessively rough |2.3.5b| | 17 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 16 |
| Front wheel bearings have excessive free play |2.3.5b| | 11 |
| Registration plate lamp issues | 10 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Horn not working |1.7.3a| | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Registration plate issues | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Offside Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Horn sounds harsh or grating |1.7.3c| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Nearside Front Lower Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Nearside Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Nearside Inner Rear Lower Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Stop lamp not working front brake |4.3.1 |a| |ii|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Nearside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Front Shock absorber has a serious fluid leak stanchions scored |5.3.2 |b|| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 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 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Headlamp light intensity severely reduced high beam stops on with dip beam (4.1.4 (a)) | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Offside Front Lower Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Brake cable has restricted free movement |1.1.15 |e|| | 1 |
| Rear Stop lamp not working switch |4.3.1 |a| |ii|| | 1 |
| An item not tested |Manual| | 1 |
| Centre Front Lower Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Centre Front Lower Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Rear Outer Exhaust system insecure exhaust mounting bracket has loose bolts (6.1.2 (a)) | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Nearside Front Headlamp not working on dipped beam inop on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Position lamp not working intermittent (4.2.1 (a)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Offside Headlamp incorrect colour |1.2.1| | 1 |
| Stop lamp does not illuminate immediately a brake applies stop lamp not opperating on front and rear brakes |1.3.1a| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear reflector on motorcycle dirty and function impaired |1.4.2a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear reflector on motorcycle does not reflect squarely to the rear |1.4.1| | 1 |
| Rear reflector on motorcycle insecure |1.4.2c| | 1 |
| Hydraulic brake control feels spongy |3.1.4a| | 1 |
| 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 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Front Brake disc contaminated fork oil |1.1.14 |b|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal |5.3.2 |b|| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Riders seat insecure |6.2.1a| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls brake switch repair (4.3.2 (a) (iii)) | 1 |
| Stop lamp does not illuminate immediately a brake applies when the front brake is applied |1.3.1a| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |