| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Rear reflector on motorcycle missing |1.4.1| | 16 |
| Registration plate issues | 8 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 7 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Fuel cap sealing washer missing |7.2.2c| | 6 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Drive chain worn to excess |6.2.1e| | 5 |
| Drive chain excessively tight |6.2.1d| | 5 |
| Horn not working |1.7.3a| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Handlebar deformed |2.1.1b| | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| 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| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 2 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Rear position lamp insecure |1.1.1c| | 2 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear position lamp damaged and function impaired |1.1.1b| | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Wheel spoke excessively loose |4.2.1b| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Nearside Rear Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced Rear Mudgaurd (6.1.1 (b) (ii)) | 1 |
| Rear Brake back plate|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Front Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Nearside Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Front An item not tested |Manual| | 1 |
| Rear An item not tested |Manual| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Brake lever cracked |3.1.2c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear reflector on motorcycle does not reflect squarely to the rear |1.4.1| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Rear position lamp insecure |1.1.1c| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Front Headlamp switch insecure |1.2.4| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Brake lever pivots excessively worn |3.1.3a| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Offside Front Brake cable damaged (1.1.15 (a)) | 1 |
| Offside Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Central Rear Position lamp not working (4.2.1 (a)) | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride Chain horse shoe clip fitted in wrong direction! |6.2.1h| | 1 |
| Drive chain sprocket carrier worn to excess Rubbers & bearings worn! |6.2.1e| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Nearside Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Front Upper Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Rear Upper Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Upper 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 |
| Nearside Front Upper Handlebar deformed |2.1.1b| | 1 |
| Front Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Handlebar handgrip missing |2.1.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake locking device insecure |3.2.A1e| | 1 |
| Rear mono-shock pivot excessively worn x3 |2.4.B.4| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear shock absorber has inadequate damping effect. rear mono/shock |2.4.A.3b| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Fuel cap ineffective No seal (6.1.3 (b) (i)) | 1 |