| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Registration plate issues | 11 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 11 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Registration plate lamp issues | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Horn not working |1.7.3a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Offside Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Throttle operating incorrectly throttle does not return (6.2.7 (a) (i)) | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Hydraulic brake control feels spongy re bled |3.1.4a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Direction indicator adversely affected by the operation of another lamp additional indicators on front wired wrong way round |4.4.3 |b|| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working from front brake lever (4.3.1 (a) (ii)) | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Headlamp aim projected beam image obviously incorrect LED not compatible with headlight unit (4.1.2 (c)) | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Nearside Front Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp aim beam image kick up to the offside (1.6) | 1 |
| Front Headlamp aim beam image kick up to the offside (1.6) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Offside Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Upper Steering lock stop maladjusted |2.1.3| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |