| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 48 |
| Headlamp aim out of alignment | 25 |
| Registration plate issues | 22 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 8 |
| Drive chain worn to excess |6.2.1e| | 6 |
| Horn not working |1.7.3a| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Wheel spoke excessively loose |4.2.1b| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 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 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Registration plate lamp issues | 2 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| All direction indicators missing |4.4.1 |a| |ii|| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Wheel more than one fixing missing wheel chain adjuster bolts missing (5.2.1 (a) (ii)) | 1 |
| Rear Wheel more than one fixing missing locking device missing in rear wheel (5.2.1 (a) (ii)) | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Rear Lower Suspension component ball joint excessively worn |5.3.4 |a| |i|| | 1 |
| Rear Rear suspension component loose |2.4.A.1a| | 1 |
| Rear Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear An item not tested |Manual| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Rear Lower Brake excessively binding |1.2.1 |f|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Brake cylinder inadequately mounted master cylinder piston circlip insecure (1.1.16 (c) (i)) | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Wheel spoke excessively loose all spokes |4.2.1b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen HID kit fitted & no headlight pattern showing in beam tester. |1.6.B.1| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Fuel pipe union leaking |7.2.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Brake hose leaking (1.1.12 (c)) | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 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 Position lamp likely to become detached |4.2.1 |c| |ii|| | 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 |
| Stop lamp remains on when the brakes are released | 1 |
| Fuel system component leaking |6.1.3 |b| |i|| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp aim projected beam image obviously incorrect led bulb fitted no pattern (4.1.2 (c)) | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 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 |
| Direction indicator flashing more than 120 times per minute All |1.5.1c| | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Steering movement excessively stiff with the wheel raised steering goes tight on righthand lock |2.2.1b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Central Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |