| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Drive chain excessively tight |6.2.1d| | 4 |
| Horn not working |1.7.3a| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Nearside Steering lock stop ineffective |2.1.3| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 3 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Nearside Rear Footrest missing |6.2.1a| | 3 |
| Offside Rear Footrest missing |6.2.1a| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Registration plate lamp issues | 2 |
| Fuel tank insecure (6.1.3 (a) (i)) | 2 |
| Fuel cap sealing washer missing |7.2.2c| | 2 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Nearside Rear Footrest insecure |6.2.1a| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Registration plate issues | 2 |
| Headlamp switch insecure |1.2.4| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Rear shock absorber has inadequate damping effect. No damping at all |2.4.A.3b| | 2 |
| Rear suspension bearing has excessive free play up & down |2.4.A2a|i|| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| All position lamps not working (4.2.1 (a)) | 2 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Chain guard fouling another component |6.2.1c| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Nearside Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 1 |
| Offside Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Nearside Rear Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake locking device missing |3.2.A1e| | 1 |
| Steering lock stop ineffective l/h full lock fowling fuel tank |2.1.3| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Footrest missing |6.2.1a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Nearside Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Stop lamp does not illuminate immediately a brake applies on all time |1.3.1a| | 1 |
| Rear Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Wheel alignment incorrect which adversely affects the steering front wheel to handle bar |2.5.1| | 1 |
| Rear suspension component loose lower shock linkage. lower bolt |2.4.A.1a| | 1 |
| Rear Rear suspension component loose spindle assembly |2.4.A.1a| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Nearside Front Upper Clutch lever shortened so it cannot be readily operated. clutch lever broken and too short |6.2.1g| | 1 |
| Nearside Front Horn control not functioning. horn button doesnt work easily |1.7.2b| | 1 |
| Direction indicators not working no indicators working |1.5.1c| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Nearside Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Headlamp aim not tested BIKE WILL NOT START |1.6| | 1 |
| Front Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Rear Footrest missing both (6.2.12 (a)) | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Steering lock stop missing |2.1.3| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Footrest missing Pillion |6.2.1a| | 1 |
| Front Brake hose excessively kinked |3.2.B3a| | 1 |
| Rear mono-shock insecure |2.4.B.4| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Fuel system component leaking carburettor |7.2.1a| | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Stop lamp not working Both (4.3.1 (a) (ii)) | 1 |
| Front Exhaust system insecure (6.1.2 (a)) | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Direction indicator missing both rear indicators missing (4.4.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Exhaust has a major leak of exhaust gases large hole in expansion pipe (6.1.2 (a)) | 1 |
| Suspension arm ball joint excessively worn lower shock mount and linkage (5.3.4 (a) (i)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock left hand lock (2.1.4 (b)) | 1 |