| Most common failures | No# failures |
|---|
| Registration plate issues | 31 |
| Rear reflector on motorcycle missing |1.4.1| | 28 |
| Headlamp aim out of alignment | 24 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 7 |
| Horn not working |1.7.3a| | 7 |
| 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| | 7 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 5 |
| Registration plate lamp issues | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 4 |
| Nearside Front Direction indicator not working |1.5.1c| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| All position lamps not working (4.2.1 (a)) | 2 |
| Offside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front Upper Locking devices not correctly fitted which may make the motor bicycle dangerous to ride engine bolt missing |6.2.1h| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Offside Front Horn not working |1.7.3a| | 1 |
| Rear suspension bearing has excessive free play swinging arm pivot |2.4.A2a|i|| | 1 |
| Inner Rear Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear Position lamp not working x2 (4.2.1 (a)) | 1 |
| Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake disc significantly and obviously worn Both front brake discs worn |1.1.14 |a| |i|| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Offside Lower Front suspension assembly component missing |2.3.1| | 1 |
| An item not tested |Manual| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Inner Wheel fixing missing (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Steering damper ineffective |2.1.2d| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Central Front Lower Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake component cracked and seriously reduced in strength |3.2.A1| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Front Brake lever pivot has excessive free play (1.1.1 (b)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Direction indicator damaged and function impaired no lens |1.5.3a| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| 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 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp light intensity severely reduced low beam (4.1.4 (a)) | 1 |
| Steering operation restricted in free movement from lock to lock clutch cable catching (2.1.4 (c)) | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Horn sounds harsh or grating |1.7.3c| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Motorcycle structure cracked |6.1.1a| | 1 |
| Offside Front Motorcycle structure cracked |6.1.1a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp flickers when tapped lightly by hand |1.3.1d| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Nearside Fuel pipe union leaking |7.2.1a| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Front Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Rear Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| 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 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |