| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 11 |
| Horn not working |1.7.3a| | 9 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 8 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 7 |
| Registration plate issues | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 4 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Direction indicator not working |1.5.1c| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Front suspension has inadequate damping effect. |2.3.6c| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 3 |
| Rear Brake locking device missing |3.2.A1e| | 3 |
| Nearside Rear Footrest missing |6.2.1a| | 3 |
| Offside Rear Footrest missing |6.2.1a| | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 3 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Indicator switch defective |1.5.4| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 2 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 2 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| All position lamps adversely affected by the operation of the horn |1.1.3b| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Chain guard insecure |6.2.1c| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Front suspension assembly component loose |2.3.1| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Brake cable knotted |3.2.A1b| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Offside Rear Brake component insecure (1.1.21 (c)) | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear An item not tested |Manual| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Front wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Brake locking device missing Torque arm |3.2.A1e| | 1 |
| Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Headlamp aim does not move downwards when dipped |1.6.5| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Wheel spindle or securing nut|s| so insecure that wheel security or steering control is adversely affected Split Pin Missing |5.2.1 |c| |ii|| | 1 |
| Rear Wheel spindle or securing nut|s| so insecure that wheel security or steering control is adversely affected Split Pin Missing |5.2.1 |c| |ii|| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Brake component damaged and seriously reduced in strength |3.2.A1| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 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 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Fork yoke in such a condition that steering control is adversely affected (2.2.2 (d) (ii)) | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Lower Forks in such a condition that steering control is adversely affected (2.2.2 (d) (ii)) | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Fuel system component insecure fuel tank |7.2.1b| | 1 |
| Front position lamp does not illuminate immediately when switched on side light |1.1.3a| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Direction indicators not working all |1.5.1c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Exhaust mounting does not fully support the exhaust system complete system insecure |7.1.1.c| | 1 |
| Fork yoke deformed front end twisted |2.1.1b| | 1 |
| Rear suspension bearing has excessive free play swing arm pivot |2.4.A2a|i|| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Brake cylinder leaking (1.1.16 (b) (i)) | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Offside Front Brake lever mounting cracked |3.1.2c| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Upper Brake reaction bracket insecure |3.2.A1j| | 1 |