| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 14 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Headlamp aim beam image kick up to the offside (1.6) | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. (3.3.C1b) | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Registration plate issues | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride torque arm missing split pins |6.2.1h| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls rear bulbs blown (4.3.2 (a) (iii)) | 1 |
| Central Front Front position lamp does not face the front |1.1.1d| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride spindle nut split pin missing |6.2.1h| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Brake clevis joint insecure |1.1.15 |c|| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.5.1) | 1 |
| Central Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Central Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Central Front Horn not working |1.7.3a| | 1 |
| Front Wheel more than one fixing missing wheel spindle castle nut split pin missing (5.2.1 (a) (ii)) | 1 |
| Front Wheel more than one fixing missing spindle castle nut split pin missing (5.2.1 (a) (ii)) | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride spilt pin not fitted |6.2.1h| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Wheel fixing missing (single fixing) (5.2.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Headlamp aim projected beam image obviously incorrect beam image kick up wrong side (4.1.2 (c)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Handlebar so insecure it is likely to become detached clamp mount bolts loose |2.2.1 |b| |ii|| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Front Brake lever attachment screws missing |3.1.2b| | 1 |
| Wheel spindle locking device missing (5.2.1 (d)) | 1 |