| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 11 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Horn not working |1.7.3a| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Horn not working (7.7 (a)) | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Motorcycle structure cracked |6.1.1a| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Headlamp not working on dipped beam changed bulb (4.1.1 (a) (ii)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Headlamp light intensity severely reduced dip beam |4.1.4 |a|| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Handlebar mounting clamp bolt missing |2.1.1a| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Registration plate issues | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock Engine revs on full right hand lock |2.1.4 |b|| | 1 |
| Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Nearside Lower Footrest insecure |6.2.1a| | 1 |
| Offside Lower Footrest insecure |6.2.1a| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle& switch gear insecure |6.2.7 |a| |ii|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Brake fluid significantly below minimum mark |1.1.10 |d| |ii|| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Brake locking device insecure |3.2.A1e| | 1 |
| Rear Suspension attachment bracket/mounting insecure swing arm loose (5.3.3 (a) (i)) | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Brake pedal insecure |3.1.2a| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Nearside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Fuel hose leaking (6.1.3 (b) (i)) | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Drive chain sprocket worn to excess 6 teeth broken (6.1.7 (c) (i)) | 1 |
| Nearside Wheel bearing rough when rotated SIDE CAR WHEEL BEARING. (5.1.3 (b) (i)) | 1 |
| Rear Sidecar structure joining/attachment plate or fastening insecure mount worn (6.1.1 (b) (i)) | 1 |
| Front Stop lamp not working lever (4.3.1 (a) (ii)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |