| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 124 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 16 |
| Registration plate lamp issues | 15 |
| Registration plate issues | 14 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 11 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Horn not working |1.7.3a| | 10 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 10 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 10 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 9 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 8 |
| Headlamp aim beam image kick up to the offside |1.6| | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 4 |
| Nearside Rear Footrest missing |6.2.1a| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 2 |
| Front Wheel spoke excessively loose |4.2.1b| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| 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| | 2 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |