| Most common failures | No# failures |
|---|
| Registration plate issues | 42 |
| Headlamp aim out of alignment | 23 |
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| 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| | 8 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Horn not working (7.7 (a)) | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Offside 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 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Handlebar mounting clamp loose |2.1.1a| | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Exhaust has part of the system missing bafffles |7.1.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Position lamp not working dipp beam (4.2.1 (a)) | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Nearside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| 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| | 1 |
| Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Throttle operating incorrectly (6.2.1f) | 1 |
| Front Stop lamp remains on when the brake is released (1.3.1e) | 1 |
| Brake performance not tested |3.3| | 1 |
| Registration plate lamp issues | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Drive belt excessively loose. |6.2.1d| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released front switch |1.3.1e| | 1 |
| All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Headlamp aim projected beam image obviously incorrect refitted bulb (4.1.2 (c)) | 1 |
| Exhaust markings indicating not for road use or similar wording exhaust stamped for closed circuit use only |7.1.4| | 1 |
| Rear Rear reflector on motorcycle missing Replaced with new one. |1.4.1| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear Drive belt excessively tight (6.1.7 (k) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride spindle |6.2.1h| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |