| Most common failures | No# failures |
|---|
| Registration plate issues | 80 |
| Rear reflector on motorcycle missing |1.4.1| | 74 |
| Headlamp aim out of alignment | 47 |
| Horn not working |1.7.3a| | 42 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 25 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 23 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 22 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 21 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 18 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 14 |
| Front wheel bearings have excessive free play |2.3.5b| | 13 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 13 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 12 |
| Horn missing |1.7.1| | 12 |
| Rear reflector missing (4.8.2 (a) (ii)) | 9 |
| Rear reflector missing |4.8.2 |a| |ii|| | 7 |
| Rear Position lamp not working (4.2.1 (a)) | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Headlamp aim not tested (4.1.2 (b)) | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Registration plate lamp issues | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Rear Position lamp not working |4.2.1 |a|| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 3 |
| Rear position lamp does not illuminate immediately when it is switched on (1.1.3a) | 3 |
| Horn not working (7.7 (a)) | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| 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 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Front Stop lamp missing |1.3.3a| | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear reflector on sidecar missing |1.4.1| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Rear reflector on motorcycle missing (1.4.1) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride chain split link clip |6.2.1h| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Nearside Drive chain excessively tight |6.2.1d| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on main beam |4.1.3 |b|| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Headlamp aim not tested wrong image emitted |4.1.2 |b|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Clutch lever shortened so it cannot be readily operated |6.2.7 |b|| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake switch not mounted |1.3.1a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Riders seat with a defective supporting structure (6.2.5 (a) (i)) | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced BOLT MISSING FROM SUBFRAME R/H (6.1.1 (b) (ii)) | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Wheel spoke excessively loose |5.2.2 |d|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen no beam pattern (4.1.2 (a)) | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on High beam |1.1.3a| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake performance not tested No front brake |3.3| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Brake pedal attachment screws loose |3.1.2b| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Rear Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Headlamp damaged and function impaired |1.2.3a| | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface |4.8.1 |a| |ii|| | 1 |
| Horn not working wire come off |1.7.3a| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls both (4.3.2 (a) (iii)) | 1 |
| Vehicle identification number not legible (0.2 (b)) | 1 |
| Fuel system component leaking started leeking mid test (6.1.3 (b) (i)) | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride split link wrong way round |6.2.1h| | 1 |
| Footrest insecure split pin missing |6.2.1a| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Centre Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Centre Rear Upper Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Wheel spoke missing |4.2.1b| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Central Front Headlamp aim not tested THE BIKE WOULDN`T START WHEN COMPLETING MOT FOR HEADLIGHT TEST |1.6| | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Brake caliper|s| securing bolt|s| loose slide mount has movement |3.2.A1j| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Horn missing |1.7.1| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Wheel spoke excessively loose 2 spokes |4.2.1b| | 1 |
| Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Brake performance not tested |3.3| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front Brake lever has inadequate reserve travel (3.1.3b) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies lever (1.3.1a) | 1 |
| Drive chain worn to excess (6.2.1e) | 1 |
| Front Drive chain sprocket worn to excess (6.2.1e) | 1 |
| Rear Drive chain sprocket worn to excess (6.2.1e) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Shock absorber has an excessively worn bush LOWER BUSH (5.3.2 (c)) | 1 |
| Stop lamp not working WHEN OPERATING FRONT BRAKE (4.3.1 (a) (ii)) | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Front Stop lamp insecure |1.3.3b| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp at least one does not illuminate on dipped beam (1.2.2a(i)) | 1 |
| Exhaust mounting missing (7.1.1c) | 1 |
| Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Horn replaced by a siren |1.7.3b| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Centre Fuel system component leaking |7.2.1a| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Front Horn not working (7.7 (a) (ii)) | 1 |