| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 8 |
| Registration plate issues | 7 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Horn not working |1.7.3a| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Offside Rear Lower Brake lever excessively chafed slightly stiff |3.2.A1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| All position lamps not working |1.1.A.3b| | 1 |
| Nearside Rear Rear reflector missing |1.5.1a| | 1 |
| Offside Rear Rear reflector missing |1.5.1a| | 1 |
| Front front brake binding |3.7.B.1| | 1 |
| Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.6.G.1f| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Offside Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Offside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Suspension arm attachment bracket/mounting insecure rear swinging arm (5.3.3 (a) (i)) | 1 |
| Lower Suspension arm attachment bracket/mounting insecure rear suspension linkage (5.3.3 (a) (i)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Nearside Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Offside Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |