| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 33 |
| Rear reflector on motorcycle missing |1.4.1| | 19 |
| Registration plate issues | 15 |
| Horn not working |1.7.3a| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| 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| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 3 |
| Rear Brake cable badly frayed |3.2.A1b| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| 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| | 3 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 2 |
| Nearside Rear reflector missing |1.5.1a| | 2 |
| Offside Rear reflector missing |1.5.1a| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Service brake: efficiency below requirements |3.7.B.7| | 2 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Offside Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Offside Rear Direction indicator insecure |1.5.3b| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 2 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 2 |
| Rear parking brake recording little or no effort | 2 |
| Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Service brake: efficiency below requirements |3.7.C.1a| | 2 |
| Nearside Rear Road wheel badly distorted (5.2.2 (c) (i)) | 2 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 2 |
| Central Front Headlamp insecure (4.1.1 (c)) | 2 |
| 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 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| All direction indicators missing |4.4.1 |a| |ii|| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Rear Upper Direction indicators not working |1.5.1c| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Front Headlamp aim not tested euo head light |4.1.2 |b|| | 1 |
| Rear position lamp|s| missing |1.1.A.3a| | 1 |
| Stop lamp missing |1.2.1a| | 1 |
| Brake cable locking device missing |3.5.1l| | 1 |
| Brake lever inappropriately repaired |9.3.1j| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Front suspension has an inadequate repair of a load bearing member or its supporting structure. |2.3.8| | 1 |
| Front Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Front Brake locking device missing reaction rod front |3.2.A1e| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| Offside Front Lower Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Offside Front Lower Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Central Rear Position lamp not working |4.2.1 |a|| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Direction indicator not working |1.5.1c| | 1 |
| Centre Front Direction indicator not working |1.5.1c| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Horn not working |1.6.2a| | 1 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 1 |
| Hazard warning switch missing |1.4.B.1d| | 1 |
| Hazard warning tell tale not working correctly |1.4.B.1e| | 1 |
| Registration plate lamp issues | 1 |
| Nearside Front shock absorber leaking oil |9.2.7b| | 1 |
| Front Exhaust system not adequately supported |7.1.1| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.6.G.1f| | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front suspension assembly component missing |2.3.1| | 1 |
| Rear Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Footrest missing |6.2.1a| | 1 |
| Centre Rear Lower Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Lower Handlebar mounting clamp loose |2.1.1a| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Brake pipe inadequately supported |3.6.B.1| | 1 |
| Nearside Front Direction indicators adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Offside Front Direction indicators adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Rear position lamp insecure |1.1.1c| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Central Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear reflector on motorcycle does not reflect squarely to the rear removed and fitted to centre line rear |1.4.1| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Fuel pipe leaking |7.2.1a| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Horn replaced by a siren |1.7.3b| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Rear Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Centre Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Upper Fuel system component insecure |7.2.1b| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Rear reflector on motorcycle insecure |1.4.2c| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Front wheel bearings are excessively tight |2.3.5b| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Headlamp damaged and function impaired |1.2.3a| | 1 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 1 |
| Nearside Rear Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Offside Rear Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Offside Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Brake lever pivot has excessive wear or free play Handbrake insecure (1.1.1 (b)) | 1 |
| Exhaust fumes causing a danger to health of persons on board Both exhausts angled up and out to sides which could cause fumes to be blown at pedestrians or other road users (6.1.2 (b) (ii)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Fuel pipe leaking (6.1.3 (b) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 1 |
| Nearside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Nearside Rear Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Nearside Rear Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Nearside Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (c)) | 1 |
| Nearside Stop lamp(s) light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Nearside Stop lamp(s) adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition exhaust modified with bits and bobs (8.1.1 (a)) | 1 |
| Handlebar mounting so insecure that steering is adversely affected move back and forward in mounts (2.2.1 (a) (ii)) | 1 |
| Rear reflector likely to become detached fitted to insecure number plate (4.8.1 (b) (ii)) | 1 |
| Front Position lamp missing (4.2.1 (a)) | 1 |
| Fuel system component leaking leak from carb over flow with fuel left on without engine running at time of test (6.1.3 (b) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Nearside Rear Brake performance not tested brake binding badly (1.2.1 (g)) | 1 |
| Steering head bearings has excessive wear or free play (2.2.2 (g)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| All position lamps not working bulbs blown (4.2.1 (a)) | 1 |
| Headlamp not working on main beam bulb blown (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam bulb blown (4.1.1 (a) (ii)) | 1 |
| All direction indicators missing (4.4.1 (a) (ii)) | 1 |