| Most common failures | No# failures |
|---|
| Registration plate issues | 33 |
| Rear reflector on motorcycle missing |1.4.1| | 15 |
| Rear reflector missing (4.8.2 (a) (ii)) | 11 |
| Headlamp aim out of alignment | 10 |
| Registration plate lamp issues | 5 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 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 |
| Riders seat insecure |6.2.1a| | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Stop lamp emits other than a steady red light |1.3.1b| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Steering headbearing has excessive wear or free play top yoke Knut lose and head bearings adjuster lose |2.2.2 |f| |i|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Stop lamp not working when front brake operated |4.3.1 |a| |ii|| | 1 |
| Offside Rear Wheel spindle or securing nut|s| so insecure that wheel security or steering control is adversely affected |5.2.1 |c| |ii|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Steering damper insecure |2.1.2d| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp not working not working from front brake (4.3.1 (a) (ii)) | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp incorrect colour headlight covers causing headlights to be incorrect colour (4.1.4 (a)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls front brake light not working. (4.3.2 (a) (iii)) | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Brake pedal mounting insecure |3.1.2a| | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Headlamp incorrect colour headlight cover causing headlight to be incorrect colour (4.1.4 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Position lamp switch insecure l,h switch gear not secure to handlebar (4.2.2 (b)) | 1 |
| Offside Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Nearside Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Brake hose connection leaking Rear brake hose to master cylinder connection weeping brake fluid (1.1.12 (c)) | 1 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Offside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls front brake lever (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |