| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 63 |
| Registration plate issues | 16 |
| Rear reflector on motorcycle missing |1.4.1| | 14 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 10 |
| Horn not working |1.7.3a| | 9 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 9 |
| Throttle operating incorrectly |6.2.1f| | 9 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Exhaust excessively deteriorated |7.1.1a| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Parking brake: efficiency below requirements |3.7.B.7| | 3 |
| Rear Wheel spoke excessively loose |4.2.1b| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Registration plate lamp issues | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Front Wheel spoke excessively loose |4.2.1b| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 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 |
| Horn not working |1.6.2a| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear Wheel spoke missing |4.2.1b| | 2 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Throttle operating incorrectly does not return on right hand lock |6.2.1f| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Offside Stop lamp not working |1.2.1b| | 1 |
| Steering system excessively rough |2.2.D.1| | 1 |
| Brake linkage has restricted free movement |3.5.1k| | 1 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| Centre Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Rear shock absorber insecurely mounted l/h shock nut missing |2.4.A.3b| | 1 |
| Brake lever is so short and the brake cannot be readily applied front brake lever broken |3.1.3c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on rear tailight intermittent |1.1.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock throttle jamming |2.1.4| | 1 |
| Throttle operating incorrectly throttle and switch insecure |6.2.1f| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear Brake rod locking device insecure |3.5.1l| | 1 |
| Parking brake efficiency below requirements |3.7.B.7| | 1 |
| Rear Parking brake not fitted on at least one wheel on a 3 wheeled vehicle |3.1.1| | 1 |
| Rear Stop lamp not working |1.2.1b| | 1 |
| Rear Rear reflector missing |1.5.1a| | 1 |
| Brake performance not tested |3.7.A.1| | 1 |
| Front wheel component fouling |9.2.8d| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Lower Exhaust excessively deteriorated |7.1.1a| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Rear Brake cable insecure | 1 |
| Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Centre Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Front wheel spindle securing nut locking device missing FORK PINCH BOLT WAS MISSING |2.3.3a| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Brake hose damaged | 1 |
| Fuel system component insecure offside front fuel tank securing bolt missing |7.2.1b| | 1 |
| Offside Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear Brake component is excessively corroded rear brake arm does not release when brake is applied |3.1.5| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen no beam pattern |1.6.B.1| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies front brake |1.3.1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Steering control restriction of the free movement of the steering |9.2.2a| | 1 |
| Offside Front All position lamps not working |1.1.A.3b| | 1 |
| Offside Rear fog lamp not working |1.3.2b| | 1 |
| Hazard warning switch faulty |1.4.B.1d| | 1 |
| Nearside Rear Trailing arm attachment bracket/mounting cracked |2.4.G.1| | 1 |
| Nearside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Centre Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Hazard warning switch inoperative missing |4.4.2 |a| |ii|| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Centre Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Stop lamp not working brake pedal |4.3.1 |a| |ii|| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear Upper Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Riders seat missing |6.2.1a| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Front front brake recording little or no effort |3.7.B.5a| | 1 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Brake reaction bracket securing bolt|s| missing split pin missing |3.2.A1j| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Brake component is excessively corroded |3.1.5| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Brake component is excessively corroded pads |3.1.5| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 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 |
| Nearside Brake cable insecure |3.5.1d| | 1 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Service brake: efficiency below requirements |3.7.C.1a| | 1 |
| Nearside Brake cable has wires broken and is significantly weakened |3.5.1b| | 1 |
| Parking brake lever is located so that it cannot be satisfactorily operated from the driver`s seat |3.1.3c| | 1 |
| Nearside Rear reflector missing |1.5.1a| | 1 |
| Offside Rear reflector missing |1.5.1a| | 1 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Motorcycle structure cracked |6.1.1a| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Central Front Lower Brake excessively binding |1.2.1 |f|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Outer Front Headlamp insecure |1.2.3b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Nearside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies Pedal |1.3.1a| | 1 |
| Front Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Exhaust system not adequately supported |7.1.1| | 1 |
| Front Brake component leaking fluid |3.2.B4| | 1 |
| Rear position lamp|s| obviously incorrectly positioned |1.1.A.3a| | 1 |
| Rear reflector obviously incorrectly positioned |1.5.1a| | 1 |
| Direction indicator obviously incorrectly positioned both rear |1.4.A.2b| | 1 |
| Rear Brake pipe inappropriately repaired |3.6.A.3| | 1 |
| Parking brake is not capable of being maintained in operation by direct mechanical action only |3.1.2| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Central Front Upper Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Offside Front Brake disc contaminated covered in fork oil (1.1.14 (b)) | 1 |
| Fuel cap leaking (6.1.3 (b) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle sticks on right hand lock (6.2.7 (a) (ii)) | 1 |
| Nearside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Front Shock absorber has negligible damping effect forks (5.3.2 (b)) | 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 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Brake pipe at imminent risk of failure or fracture (1.1.11 (a)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working New bulb fitted (4.4.1 (a) (ii)) | 1 |
| Central Exhaust has a major leak of exhaust gases Box. (6.1.2 (a)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 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)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Stop lamp not working rear pedal (4.3.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |