| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Registration plate issues | 12 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Drive chain excessively loose |6.2.1d| | 7 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 6 |
| Drive chain worn to excess |6.2.1e| | 6 |
| Registration plate lamp issues | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Rear Stop lamp missing |1.3.3a| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear reflector on motorcycle obscured |1.4.1| | 2 |
| Stop lamp does not illuminate immediately a brake applies FRONT BRAKE OPERATION |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies REAR BRAKE OPERATION |1.3.1a| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Brake pedal is positioned so that 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 |
| Handlebar deformed |2.1.1b| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Stop lamp does not emit a steady light BOTH FRONT AND BACK BRAKE DOESN`T TURN BRAKE LIGHT ON. |1.3.1b| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Direction indicator not working FR/N/S |4.4.1 |a| |ii|| | 1 |
| Stop lamp remains on when the brake is released REAR BRAKE |1.3.1e| | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock L/H switch gear hitting tank before steering stop. (2.1.4 (b)) | 1 |
| Headlamp insecure headlamp housing badly split lens not secure in housing. (4.1.1 (c)) | 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 lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Rear Brake linkage clevis joint excessively worn |3.2.A1d| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Offside Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Centre Front Front mudguard insecure |2.3.7| | 1 |
| Nearside Outer Rear Drive chain excessively loose |6.2.1d| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Front Stop lamp not working front control (4.3.1 (a) (ii)) | 1 |
| Front Brake cylinder leaking leaking at lever(seal split) (1.1.16 (b) (i)) | 1 |
| Shock absorber has a serious fluid leak Both front. |5.3.2 |b|| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure Front mudguard mountings loose. |6.1.1 |b| |i|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Offside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Shock absorber insecurely attached no damping (5.3.2 (a) (i)) | 1 |
| Brake rod insecure fitted wrong (1.1.15 (c)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Position lamp not working sidelamp (4.2.1 (a)) | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |