| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 43 |
| Registration plate issues | 24 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Horn not working |1.7.3a| | 4 |
| Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 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 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| 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| | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Centre Rear Upper Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Front Roller brake test indicates a binding brake brake calliper rubbing on disc |3.3.A1a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Stop lamp not working front or rear |4.3.1 |a| |ii|| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front wheel bearings have excessive free play spokes touching the non standard caliper due to front wheel bearing play |2.3.5b| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Registration plate lamp issues | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Drive belt worn to excess (6.1.7 (c) (i)) | 1 |
| Rear reflector missing reflector missing (4.8.2 (a) (ii)) | 1 |
| Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Central Front Handlebar mounting so insecure that steering is adversely affected (2.2.1 (a) (ii)) | 1 |
| Central Rear Stop lamp not working rear brake lamp not working on foot brake (4.3.1 (a) (ii)) | 1 |
| Nearside Handlebar grip missing (2.2.1 (d) (i)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| 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)) | 1 |