| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 18 |
| Headlamp aim beam image kick up to the offside |1.6| | 16 |
| Registration plate issues | 12 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 11 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 5 |
| Drive chain worn to excess |6.2.1e| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Offside Rear Direction indicators not working |1.5.1c| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Handlebar deformed |2.1.1b| | 1 |
| Front Brake back plate|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Brake caliper insecure |1.1.16 |c| |i|| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Wheel spoke cracked. |4.2.1b| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Handlebar handgrip missing |2.1.1c| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Brake component is excessively corroded |3.1.5| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Offside Rear Upper Stop lamp not working stop lamp not operating from front lever (4.3.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake fluid reservoir fluid not visible not visable and fliud on/around base of reservoir (1.1.10 (d) (iii)) | 1 |
| Rear Brake caliper inadequately mounted (1.1.16 (c) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Offside All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Wheel spindle locking device ineffective split pin locking device missing. (5.2.1 (d)) | 1 |
| Exhaust has a major leak of exhaust gases front exhaust pipes blowing from front exhaust cones/gaskets. (6.1.2 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the steering steering. (2.4 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the handling handling. (2.4 (a)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect kick-up to offside ; masked level (4.1.2 (c)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Fuel system component leaking bottom of right carb (6.1.3 (b) (i)) | 1 |
| Rear Brake caliper inadequately mounted locking bolt not locked (1.1.16 (c) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |