| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 10 |
| Registration plate issues | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Registration plate lamp issues | 3 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 2 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Fuel cap ineffective unable to remove seat to access |6.1.3 |b| |i|| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 2 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Central Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Brake pedal pivot excessively worn (1.1.1 (b)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Offside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride drive chain split link incorrectly fitted |6.2.1h| | 1 |
| Rear Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Front Brake master cylinder insecure (1.1.10 (c)) | 1 |
| Rear Brake disc contaminated also pads (1.1.14 (b)) | 1 |
| Steering operation restricted in free movement from lock to lock front mudguard (2.1.4 (c)) | 1 |
| Suspension arm pin or bush excessively worn swing arm spindle loose (5.3.4 (a) (i)) | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Headlamp incorrect colour (4.1.4 (a)) | 1 |
| Brake disc insecure mounting bolts snapped/loose---- ALL (1.1.14 (a) (ii)) | 1 |
| Rear Brake caliper has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 1 |
| Front Brake component modification unsafe caliper mount welded poorly (1.1.21 (d) (i)) | 1 |
| Rear Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake disc insecure mounting bolts grinding against caliper mount (1.1.14 (a) (ii)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Stop lamp showing white light to the rear |4.3.3 |a| |ii|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Horn control defective does not sound horn every time it is pressed |1.7.2a| | 1 |
| Rear suspension bush has excessive free play shock linkages |2.4.A2a|i|| | 1 |
| Drive chain fouling another component drive chain guide damaged running on chain and rear sprocket |6.2.1d| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride drive chain split link clip facing wrong direction |6.2.1h| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Suspension component pin or bush excessively worn lower suspesion pivot bush |5.3.4 |a| |i|| | 1 |
| Rear Suspension component pin or bush excessively worn centre suspesion bush |5.3.4 |a| |i|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Central Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Front position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Dipswitch does not operate immediately when selected on main beam |4.1.3 |b|| | 1 |
| Stop lamp not working OFF REAR FOOT BRAKE |4.3.1 |a| |ii|| | 1 |
| Front All position lamps not working |4.2.1 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen no beam pattern emits as spotlight (4.1.2 (a)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Offside Rear Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Nearside Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |