| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 35 |
| Registration plate issues | 24 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 18 |
| Headlamp aim out of alignment | 18 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 17 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 10 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Registration plate lamp issues | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 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 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear All direction indicators obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Fuel cap leaking (6.1.3 (b) (i)) | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Stop lamp not working front system (4.3.1 (a) (ii)) | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Rear 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 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Position lamp not working |4.2.1 |a|| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Gradient brake test indicates a binding brake |3.3.D1c| | 1 |
| Stop lamp not working front brake lever |4.3.1 |a| |ii|| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Steering lock stop maladjusted |2.1.3| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Direction indicator not working |1.5.1c| | 1 |