| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 26 |
| Registration plate issues | 10 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Horn not working |1.7.3a| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Offside Rear Footrest insecure |6.2.1a| | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Brake linkage excessively corroded |3.2.A1c| | 1 |
| Rear Wheel spindle loose |5.2.1 |c| |i|| | 1 |
| Rear Brake drum insecure torque arm bolt split pin missing |1.1.14 |a| |ii|| | 1 |
| Offside Rear Brake drum insecure torque arm split pin missing |1.1.14 |a| |ii|| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 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 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Headlamp light source and lamp not compatible hid kit fitted |4.1.4 |c|| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Offside Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Horn sounds harsh or grating |1.7.3c| | 1 |
| Front Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Fuel cap leaking |6.1.3 |b| |i|| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Motorcycle structure excessively corroded rear frame holed and corroded in close proximity to rear shock absorber mountings |6.1.1a| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Gradient brake test indicates a binding brake |3.3.D1c| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Inner Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Inner Rear Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Offside Front Upper Handlebar so insecure it is likely to become detached bolt (2.2.1 (b) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Stop lamp not working front lever switch faulty (4.3.1 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |