| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Registration plate lamp issues | 11 |
| Registration plate issues | 7 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 4 |
| All position lamps not working |1.1.A.3b| | 3 |
| Parking brake: efficiency below requirements (3.7.C.1b) | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 2 |
| Rear parking brake recording little or no effort | 2 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 2 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 2 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 2 |
| Front Steering damper ineffective |9.2.3b| | 2 |
| Position lamp switch missing |1.1.A.1| | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 2 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 2 |
| Nearside Stop lamp not working |1.2.1b| | 2 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 2 |
| Stop lamp does not illuminate by the operation of both brake controls hand (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Position lamp showing white light to the rear |4.2.3 |a| |ii|| | 1 |
| Front Suspension component pin or bush excessively worn front fork bushes |5.3.4 |a| |i|| | 1 |
| Front Position lamp adversely affected by the operation of another lamp headlamp flashing with inicators on with high beam |4.2.3 |b|| | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure mudguard rubbing on bellypan |6.1.1 |b| |i|| | 1 |
| Nearside Indicator tell tale inoperative (1.4.A.2a) | 1 |
| Exhaust emissions carbon monoxide content excessive (7.3.B.1a) | 1 |
| Nearside Rear Exhaust has a major leak of exhaust gases box missing (6.1.2 (a)) | 1 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Nearside Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Anti-lock braking system warning lamp indicates an ABS fault | 1 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Front Steering damper leaking oil |2.2.C.1f| | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front position lamp does not illuminate immediately when switched on (1.1.3a) | 1 |
| Rear shock absorber seal failed and leaking oil (2.4.A.1c) | 1 |
| Rear shock absorber has inadequate damping effect. (2.4.A.3b) | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Nearside Rear Shock absorber has negligible damping effect |2.7.5| | 1 |
| Offside Rear Shock absorber has negligible damping effect |2.7.5| | 1 |
| Offside Rear Exhaust system not adequately supported |7.1.1| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Headlamp not working on dipped beam replace bulb |4.1.1 |a| |ii|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. anti dive valve siezed |2.3.6b| | 1 |
| Nearside Rear Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |9.2.1a| | 1 |
| Brake pedal functionally incomplete |3.3.A.1a| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Nearside Front Suspension arm attachment bracket/mounting bolt missing |2.4.G.1| | 1 |
| Offside Front Suspension arm attachment bracket/mounting bolt missing |2.4.G.1| | 1 |
| Nearside Front Headlamp does not operate immediately when selected on dipped beam |1.7.4a| | 1 |
| Offside Front Headlamp does not operate immediately when selected on dipped beam |1.7.4a| | 1 |
| Service brake: efficiency below requirements |3.7.C.1a| | 1 |
| Offside Rear brake disc insecure |3.5.1i| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front position lamp|s| has less than 50% of the light sources illuminating |1.1.A.3b| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 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 |