| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 29 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 23 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 21 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 11 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 8 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 8 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 7 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 6 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 5 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 4 |
| Horn not working |1.7.3a| | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 3 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Registration plate issues | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 3 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Front Brake disc|s| securing bolt|s| missing |3.2.A1g| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear position lamp insecure |1.1.1c| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Brake performance not tested |3.3| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Vehicle identification number not legible |6.3.5a| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Front Front mudguard can easily contact any fixed point of the motor bicycle. |2.3.7| | 1 |
| Inner Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Floor brake test indicates a sticking brake parking brake |3.3.C2c| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Handlebar handgrip missing |2.1.1c| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| 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 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Front Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Brake performance not tested DUE TO NO PAD MATERIAL FRONT AND REAR |1.2.1 |g|| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Central Front Horn not working |1.7.3a| | 1 |
| Vehicle identification number not permanently displayed |6.3.5a| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Brake lever 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 Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Centre Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Registration plate lamp issues | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Rear wheel rotation likely to be impeded Stand breaking up and insecure, ground clearance reduced |6.2.1b| | 1 |
| Nearside Front shock absorber seal failed and leaking oil And stanchion corroded |2.3.3| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Nearside Front Front position lamp does not face the front |1.1.1d| | 1 |
| Front shock absorber seal failed and leaking oil Both forks (2.3.3) | 1 |
| Brake disc(s) friction surface contaminated by oil or grease Front (3.2.A1k) | 1 |
| Front Brake disc(s) is excessively distorted (3.2.A1m) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Motorcycle structure has a fracture which is likely to adversely affect braking or steering (6.1.1 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |