| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 39 |
| Registration plate issues | 25 |
| 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| | 11 |
| Front wheel bearings have excessive free play |2.3.5b| | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 8 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 7 |
| Throttle operating incorrectly |6.2.1f| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Horn not working |1.7.3a| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort Pedal return spring detached |3.3.A1c| | 1 |
| Centre Front Lower Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Centre Rear Lower Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Central Rear Exhaust has a major leak of exhaust gases blowing at collector box |6.1.2 |a|| | 1 |
| Central Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Central Rear Lower Exhaust is leaking and excessively noisey small hole in exhaust silencer box |7.1.1b| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 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 |
| Stop lamp does not illuminate immediately a brake applies Front brake |1.3.1a| | 1 |
| Nearside Outer Front Horn control defective |1.7.2a| | 1 |
| Centre Rear Rear position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Offside Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Nearside Front Front position lamp|s| missing |1.1.A.3a| | 1 |
| Offside Front Front position lamp|s| missing |1.1.A.3a| | 1 |
| Nearside Rear Rear reflector missing |1.5.1a| | 1 |
| Offside Rear Rear reflector missing |1.5.1a| | 1 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 1 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |9.2.1a| | 1 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Nearside Stop lamp excessively damaged so that it is not visible from a reasonable distance |1.2.1d| | 1 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Parking brake efficiency below requirements |3.7.D.4| | 1 |
| Hazard warning switch missing |1.4.B.1d| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Offside Stop lamp not working |1.2.1b| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Front Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level |1.1.10 |d| |ii|| | 1 |
| Rear Upper Engine mounting/bracket excessively loose |6.1.8 |a| |ii|| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Front Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Front Headlamp aim beam image too far to the right |1.6.4| | 1 |
| Offside 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 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Brake rod insecure rear pivot bolt missing (1.1.15 (c)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Central Front Horn not working (7.7 (a) (ii)) | 1 |
| Front Upper Suspension attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Stop lamp not working not working when back brake is applied (4.3.1 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake pedal has insufficient reserve travel Adjusted rear brake. (1.1.2 (a)) | 1 |
| Front Brake lever insecure lever/master cylinder clamp mounted on rubber sleave. (1.1.2 (e) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Offside Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 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 indicates excessive fluctuation of brake effort excess runn out (1.2.1 (e)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working Rear foot brake (4.3.1 (a) (ii)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Steering operation restricted in free movement from lock to lock Horn rubbing (2.1.4 (c)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Fuel system component leaking Leaking from left hand carb (6.1.3 (b) (i)) | 1 |
| Direction indicator not working Both front light up but do not flash (4.4.1 (a) (ii)) | 1 |
| Direction indicator not working Both rear not working at all (4.4.1 (a) (ii)) | 1 |
| Offside All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Central Front Horn not working (7.7 (a)) | 1 |