| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Registration plate issues | 5 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Brakes imbalanced across an axle | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Headlamp not working on dipped beam |1.7.5a| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Front Stop lamp not working |1.2.1b| | 2 |
| Offside Front Brake hose excessively damaged |3.6.B.4d| | 2 |
| Rear brake binding | 2 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear suspension component loose |2.4.A.1a| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Nearside Stop lamp not working |1.2.1b| | 2 |
| Service brake efficiency less than 50% of the required value |1.2.2 |a| |ii|| | 2 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front front brake binding |3.7.B.1| | 1 |
| Front Horn not working |1.6.2a| | 1 |
| Front Headlamp not working on main beam |1.7.5a| | 1 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Nearside Rear Wheel insecure |4.2.A.1c| | 1 |
| Offside Rear Wheel insecure |4.2.A.1c| | 1 |
| Front Wheel insecure |4.2.A.1c| | 1 |
| Central Rear Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Nearside Front Upper Indicator switch inoperative |4.4.2 |a| |ii|| | 1 |
| Central Front Headlamp not working on main beam MAIN BEAM SWITCH NOT WORKING (4.1.1 (a) (ii)) | 1 |
| Nearside Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake caliper inadequately mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Fuel pipe so insecure there is a risk of fire (6.1.3 (a) (ii)) | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Brake master cylinder severely corroded |3.2.B1b| | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Mechanical brake component has restricted free movement | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Rear reflector missing |1.5.1a| | 1 |
| Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Front Position lamp switch does not illuminate the front and rear position lamps with a single operation |1.1.A.2| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Nearside Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Fuel cap/sealing device sealing washer deteriorated |7.2.4c| | 1 |
| Stop lamp(s) not working opp 1 (4.3.1 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear parking brake recording little or no effort | 1 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 1 |
| Front Hydraulic brake calliper leaking (1.1.16 (b) (i)) | 1 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Brake pipe union leaking fluid Rear caliper |3.2.B4| | 1 |
| Rear Brake linked system has a seized caliper pivot. |3.2.B5| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Nearside Front Lower Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Horn likely to be confused with an emergency vehicle siren |7.7 |c| |ii|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced (6.1.1 (c) (i)) | 1 |
| Front Brake cable locking device missing |3.5.1l| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Nearside Rear Brake lining(s) contaminated (1.1.13 (b)) | 1 |
| Mechanical brake component locking device missing split pin on rear brake cyclinder missing from clevis pin |3.5.1l| | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Parking brake lever defective so that it cannot be satisfactorily operated |3.1.3c| | 1 |
| Parking brake lever releases when knocked |3.1.6a| | 1 |
| Parking brake lever, pawl mechanism pivot|s| locking device missing |3.1.4b| | 1 |
| Passenger hand grip missing |6.2.12 |a|| | 1 |