| Most common failures | No# failures |
|---|
| Registration plate issues | 57 |
| Headlamp aim out of alignment | 33 |
| Rear reflector on motorcycle missing |1.4.1| | 14 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 10 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| 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 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Horn not working |1.7.3a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front Horn not working |1.7.3a| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 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| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Fuel pipe leaking |7.2.1a| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Rear All direction indicators not working |4.4.1 |a| |ii|| | 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 |
| Offside Front All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Nearside Front All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 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 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Throttle operating incorrectly sticking |6.2.7 |a| |i|| | 1 |
| Brake pivot has restricted free movement |1.1.15 |e|| | 1 |
| Offside Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Central Rear Position lamp not working |4.2.1 |a|| | 1 |
| Central Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Registration plate lamp issues | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition Baffle missing (8.1.1 (a)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp at least one does not illuminate on dipped beam (1.2.2a(i)) | 1 |
| Central Front Position lamp not working Bulb Replaced Front Position Lamp PRS (4.2.1 (a)) | 1 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies Rear brake light not working (1.3.1a) | 1 |
| Nearside Rear Rear wheel spindle securing nut locking device missing (2.4.A.2b) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 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 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Position lamp not working front (4.2.1 (a)) | 1 |
| Brake indicates excessive fluctuation of brake effort front (1.2.1 (e)) | 1 |
| Offside Rear Direction indicator lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Footrest insecure stiff (6.2.12 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |