| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 29 |
| Rear reflector on motorcycle missing |1.4.1| | 15 |
| Registration plate issues | 14 |
| Rear Position lamp not working (4.2.1 (a)) | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Horn not working |1.7.3a| | 2 |
| Offside Front Position lamp not working (4.2.1 (a)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Nearside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Rear Brake lagging in operation |1.2.1 |d|| | 1 |
| Headlamp dipped beam affected by the operation of another lamp blow a fuse and knocks out the electrics |1.2.2c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Centre Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Stop lamp insecure Lens insecure |1.3.3b| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Footrest insecure |6.2.12 |a|| | 1 |
| Nearside Wheel bearing rough when rotated SIDECAR |5.1.3 |b| |i|| | 1 |
| Centre Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Stop lamp does not illuminate immediately a brake applies both controls |1.3.1a| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Front position lamp adversely affected by the operation of another lamp comes on with stop light |1.1.3b| | 1 |
| Offside Rear Rear wheel spindle securing nut locking device insecure fit r clip |2.4.A.2b| | 1 |
| Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Horn missing |1.7.1| | 1 |
| Rear All position lamps not working |4.2.1 |a|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Sidecar suspension has an insecure unit. |5.2.3a| | 1 |
| Front Fuel hose leaking |7.2.1a| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| An item not tested |Manual| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Brake pedal cannot be released smoothly rear brake sticks on |3.1.3d| | 1 |
| Exhaust mounting does not fully support the exhaust system complete exhaust insecure |7.1.1.c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Footrest insecure right footrest bent |6.2.1a| | 1 |
| Centre Rear Rear reflector on motorcycle missing (1.4.1) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Front Horn not working (7.7 (a) (ii)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Central Front Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Nearside Front Lower Motorcycle structure joining/attachment plate or fastening insecure Front brake hose insecure (6.1.1 (b) (i)) | 1 |
| Central Front Lower Fork yoke modification unsafe Excessive fork flexing due to removal of front mudguard (2.2.2 (e)) | 1 |
| Registration plate lamp issues | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Front Brake lever insecure Clamp is cracked and lever is insecure. (1.1.2 (e) (i)) | 1 |
| Offside Throttle control functioning such that safe operation of the motorcycle is adversely affected Housing/switchgear is insecure & moves when you turn the throttle. (6.2.7 (a) (ii)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Throttle operating incorrectly holds revs on right hand lock (6.2.7 (a) (i)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Offside Footrest insecure Front and rear (6.2.12 (a)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Position lamp likely to become detached (4.2.1 (c) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Sidecar wheel alignment has excessive toe-out (2.4 (b)) | 1 |
| Nearside Front Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Nearside Rear Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Sidecar structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake component insecure Brake plate bolt missing. (1.1.21 (c)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |