| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 15 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Registration plate lamp issues | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Fuel system component insecure |7.2.1b| | 2 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Horn not working |1.7.3a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Steering headbearing excessively stiff or notchy with front wheel raised (2.2.2 (f) (i)) | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Fuel system component insecure |7.2.1b| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Centre Front Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| 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 |
| Front Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 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 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working Front (4.3.1 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Nearside Front Motorcycle structure joining/attachment plate or fastening insecure front fender fastners missing ,fender insecure (6.1.1 (b) (i)) | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |