| Most common failures | No# failures |
|---|
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Headlamp aim out of alignment | 5 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Horn not working |1.7.3a| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 2 |
| Registration plate issues | 2 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Rear position lamp missing |1.1.1a| | 1 |
| Rear Rear wheel insecure |4.2.3b| | 1 |
| Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Direction indicator insecure |1.5.3b| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Stop lamp does not illuminate immediately a brake applies front |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear |1.3.1a| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside 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| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Nearside Front Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Nearside Front Direction indicator obscured |1.5.1a| | 1 |
| Offside Front Direction indicator obscured |1.5.1a| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front All position lamps adversely affected by the operation of the horn |1.1.3b| | 1 |
| Rear Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Nearside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Horn not working |1.7.3a| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Centre Rear Front mudguard insecure |2.3.7| | 1 |
| Centre Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Centre Lower Leg shield insecure and likely to impede the steering |2.1.2e| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |