| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 10 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 6 |
| Rear Brake locking device missing |3.2.A1e| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 4 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Rear suspension component loose |2.4.A.1a| | 2 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted wrong way round (6.1.7 (j) (i)) | 1 |
| Centre Rear Lower Footrest missing |6.2.1a| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Brake locking device insecure |3.2.A1e| | 1 |
| Exhaust is leaking and excessively noisey downpipe |7.1.1b| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal leaking (5.3.2 (b)) | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| An item not tested |Manual| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Suspension rod mounting modified so the suspension is inoperative front forks seized (5.3.3 (c) (ii)) | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear suspension bearing has excessive free play Swinging arm |2.4.A2a|i|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear Brake back plate|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Front Brake back plate|s| insecure |3.2.A1j| | 1 |
| Front shock absorber seal failed and leaking oil both
|2.3.3| | 1 |
| Chain guard fouling another component |6.2.1c| | 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 |
| Brake pedal insecure (1.1.2 (e) (i)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Offside Rear Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |