| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 76 |
| Registration plate issues | 73 |
| Headlamp aim out of alignment | 44 |
| Horn not working |1.7.3a| | 13 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Rear reflector missing (4.8.2 (a) (ii)) | 12 |
| Registration plate lamp issues | 10 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Rear reflector on motorcycle missing (1.4.1) | 7 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 6 |
| Offside Rear Direction indicators not working |1.5.1c| | 5 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 5 |
| Horn not working |7.7 |a| |ii|| | 5 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Horn not working (7.7 (a)) | 5 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Rear Footrest missing (6.2.12 (a)) | 3 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Footrest missing |6.2.1a| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| An item not tested |Manual| | 2 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Exhaust has part of the system missing |7.1.1a| | 2 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Horn control not functioning. |1.7.2b| | 2 |
| Rear Brake pedal insecure |3.1.2a| | 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 indicators not working |1.5.1c| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Centre Front Lower Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Front Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Rear reflector on motorcycle incorrectly positioned (1.4.2d) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |