| Most common failures | No# failures |
|---|
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Drive chain excessively loose |6.2.1d| | 11 |
| Headlamp aim out of alignment | 10 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Registration plate issues | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Horn not working |1.7.3a| | 3 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake disc|s| insecure |3.2.A1g| | 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 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Offside Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Brake pedal mounting cracked . |3.1.2c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front Steering lock stop missing |2.1.3| | 1 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Fuel hose leaking |7.2.1a| | 1 |
| Offside Throttle operating incorrectly |6.2.1f| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Offside Front Brake component is fractured |3.1.5| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Offside Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Brake disc contaminated (1.1.14 (b)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Registration plate lamp issues | 1 |
| Stop lamp does not illuminate by the operation of both brake controls not working from front brake (4.3.2 (a) (iii)) | 1 |
| Brake hose damaged | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |