| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 60 |
| Registration plate issues | 50 |
| Rear reflector on motorcycle missing |1.4.1| | 17 |
| Headlamp aim beam image kick up to the offside |1.6| | 17 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 10 |
| 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| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Stop lamp remains on when the brakes are released | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Horn not working |1.7.3a| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 3 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Registration plate lamp issues | 3 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Brake pedal cannot be released smoothly |3.1.3d| | 2 |
| Front Headlamp insecure |1.2.3b| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Throttle operating incorrectly sticking |6.2.1f| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Offside Rear 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 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Rear Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 2 |
| Centre Front Direction indicator obscured |1.5.1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front All direction indicators obviously incorrectly positioned NOT 240MM APART |4.4.3 |a|| | 1 |
| Offside Front Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Rear Brake lever excessively corroded |3.2.A1c| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Steering damper insecure fork leg |2.1.2d| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear brake disc contaminated by oil |3.5.1h| | 1 |
| Front wheel bearings have excessive free play |9.2.8c| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Nearside Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Front Indicator switch defective |1.5.4| | 1 |
| Offside Front Indicator switch defective |1.5.4| | 1 |
| Fuel cap missing |7.2.2a| | 1 |
| Offside Rear Upper Exhaust silencer likely to become detached |8.1.1 |b| |ii|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Brake hose damaged | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Rear Brake disc fractured |1.1.14 |a| |ii|| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 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 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Sidecar rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.8| | 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 |
| Offside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Brake lever excessively chafed |3.2.A1a| | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Offside Front Brake hose fouling |3.2.B3b| | 1 |
| Front Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Brake fluid reservoir leaking hydraulic fluid weeping fluid from sight-glass |3.2.B1e| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Central Front Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |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 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Brake caliper insecure fixing bolt loose |1.1.16 |c| |i|| | 1 |
| Nearside Rear Direction indicator missing |4.4.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator missing |4.4.1 |a| |ii|| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear 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| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Rear reflector missing FITTED DURING TEST (4.8.2 (a) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front position lamp does not illuminate immediately when switched on (1.1.3a) | 1 |
| Headlamp at least one does not illuminate on dipped beam (1.2.2a(i)) | 1 |
| Nearside Direction indicator not working (1.5.1c) | 1 |
| Offside Direction indicator not working (1.5.1c) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on (1.1.3a) | 1 |
| Rear Brake pedal cannot be released smoothly (3.1.3d) | 1 |
| Rear Roller brake test indicates a binding brake (3.3.A1a) | 1 |
| Front Wheel spoke excessively loose (4.2.1b) | 1 |
| Fork yoke insecure top yolk fork bolts missing (2.2.2 (d) (i)) | 1 |
| Offside Front Brake disc(s) friction surface contaminated by oil or grease (3.2.A1k) | 1 |
| Front Brake hose fouling (3.2.B3b) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Stop lamp(s) adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Offside Rear Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Rear Brake caliper excessively weakened by corrosion rear caliper sticking (1.1.16 (d) (i)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Nearside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Dipswitch does not operate immediately when selected on main beam switch not always illuminating main beam, sometimes no light at all. (4.1.3 (b)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Throttle control functioning such that safe operation of the motorcycle is adversely affected sticking (6.2.7 (a) (ii)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central Front Upper Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Offside Fork yoke insecure yoke stancion clamp bolt threaded and NOT clamping tight (2.2.2 (d) (i)) | 1 |