| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 60 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 29 |
| Stop lamp remains on when the brakes are released | 24 |
| Registration plate issues | 19 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 16 |
| Stop lamp not working |4.3.1 |a| |ii|| | 13 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 13 |
| Stop lamp remains on when the brake is released |1.3.1e| | 12 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 11 |
| Stop lamp not working (4.3.1 (a) (ii)) | 11 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 10 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 10 |
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 9 |
| Front Brake excessively binding (1.2.1 (f)) | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 8 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 8 |
| Rear reflector on motorcycle obscured |1.4.2b| | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 7 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 7 |
| Front Position lamp not working (4.2.1 (a)) | 6 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 5 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 5 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 5 |
| Front Brake excessively binding |1.2.1 |f|| | 5 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 5 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 5 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 4 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 4 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 4 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Headlamp insecure (4.1.1 (c)) | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Rear Brake excessively binding |1.2.1 |f|| | 4 |
| Rear reflector on motorcycle obscured |1.4.1| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Offside Indicator tell tale not functioning |1.5.2| | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Riders seat insecure (6.2.5 (a) (ii)) | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Nearside Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Front position lamp missing |1.1.1a| | 2 |
| Fuel cap ineffective |6.1.3 |b| |i|| | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Riders seat with a defective supporting structure (6.2.5 (a) (i)) | 2 |
| Nearside Rear Road spring fractured (5.3.1 (b) (i)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Nearside Indicator tell tale not functioning |1.5.2| | 2 |
| Nearside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Offside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 2 |
| Rear Brake drum in such a condition that it is seriously weakened (1.1.14 (a) (ii)) | 2 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 2 |
| Nearside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Offside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Front position lamp damaged and function impaired |1.1.1b| | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Brake lever pivot has excessive free play |1.1.1 |b|| | 2 |
| Dipswitch does not operate immediately when selected on main beam |4.1.3 |b|| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |