| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 11 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Registration plate issues | 8 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 6 |
| Horn not working |1.7.3a| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Direction indicators not working |1.5.1c| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Headlamp switch faulty |1.2.4| | 3 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Front suspension has inadequate damping effect. |2.3.6c| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 3 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Front Direction indicator not working |1.5.1c| | 2 |
| Rear Direction indicator not working |1.5.1c| | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 2 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Direction indicator not working |1.5.1c| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Front mudguard insecure |2.3.7| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Indicator switch defective |1.5.4| | 2 |
| An item not tested |Manual| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Brake locking device missing |3.2.A1e| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Offside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Suspension arm attachment bracket/mounting insecure swing arm pin nut loose (5.3.3 (a) (i)) | 1 |
| Front Stop lamp not working Front brake switch not working (4.3.1 (a) (ii)) | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking ENGINE LOOSE IN FRAME |6.1.1c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Rear suspension component loose |2.4.A.1a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Front Front wheel spindle securing nut locking device insecure split pin |2.3.5a| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Upper Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Rear Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Nearside Upper Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Roller brake test indicates a binding brake rear |3.3.A1a| | 1 |
| Offside Inner Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Offside Rear Brake back plate|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front suspension assembly component loose Rear link bolts |2.3.1| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Brake lever insecure Lock nut missing |3.1.2a| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Nearside Front Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Exhaust has part of the system missing |7.1.1a| | 1 |
| Offside Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Wheel spoke excessively corroded (5.2.2 (d)) | 1 |
| Offside Front Front suspension spring worn and seriously weakened |2.3.2b| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake back plate|s| insecure |3.2.A1j| | 1 |
| Direction indicators affected by the operation of another lamp Indicators do not work when lights are on |1.5.1c| | 1 |
| Nearside Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Offside Front Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Steering linkage has excessive free play |2.2.2| | 1 |
| Throttle operating incorrectly sticking |6.2.1f| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Upper Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Front Front suspension assembly has excessive free play in the pivot bearings. |2.3.2| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Nearside Front Lower Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Offside Front Lower Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Wheel spoke cracked. |4.2.1b| | 1 |
| Handlebar so insecure it is likely to become detached |2.2.1 |b| |ii|| | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| All direction indicators light intensity significantly reduced (4.4.3 (a)) | 1 |
| Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Rear Wheel spoke excessively loose |5.2.2 |d|| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Wheel fixing loose (single fixing) Front and rear (5.2.1 (a) (ii)) | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Nearside Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Offside Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Nearside Front Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Front suspension assembly has excessive free play in the pivot bearings. |2.3.2| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Centre Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Lower Steering linkage has excessive free play |2.2.2| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |