| Most common failures | No# failures |
|---|
| Registration plate issues | 8 |
| Headlamp aim out of alignment | 6 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Registration plate lamp issues | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Wheel fixing missing |multiple fixings| chain sdjusters missing |5.2.1 |a| |i|| | 1 |
| Nearside Rear Motorcycle structure is deformed and structural rigidity is significantly reduced swing arm damaged |6.1.1 |a| |i|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Footrest missing rear footrests missing |6.2.12 |a|| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Stop lamp does not illuminate immediately a brake applies by front lever |1.3.1a| | 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 |
| Stop lamp does not illuminate immediately a brake applies front switch n/w |1.3.1a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |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 |
| Nearside Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Rear Brake component insecure locking nut rear brake linkage |1.1.21 |c|| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Rear Upper Shock absorber insecurely attached |5.3.2 |a| |i|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Suspension insecurely attached chain adjusters |5.3.3 |a| |i|| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Upper Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Nearside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Offside Brake pedal pivot excessively worn (1.1.1 (b)) | 1 |
| Offside Front Brake lever excessively worn (1.1.15 (b)) | 1 |
| Central Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Brake caliper damaged and braking performance affected (1.1.16 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |