| Most common failures | No# failures |
|---|
| Registration plate issues | 17 |
| Headlamp aim out of alignment | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Horn missing |1.7.1| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Horn not working |1.7.3a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Wheel spindle or securing nut|s| so insecure that wheel security or steering control is adversely affected |5.2.1 |c| |ii|| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| An item not tested |Manual| | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front suspension assembly component missing FORK TENSIONER MISSING |2.3.1| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride CHAIN ADJUSTERS LOOSE |6.2.1h| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| 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 Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Central Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Central Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Central Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Registration plate lamp issues | 1 |
| Nearside Motorcycle structure cracked |6.1.1a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 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 |
| Fuel system component leaking from carb when running. then bike cut out (6.1.3 (b) (i)) | 1 |
| Handlebar handgrip missing |2.1.1c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear All direction indicators obviously incorrectly positioned INSECURE (4.4.3 (a)) | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Offside Front Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Front Upper Horn missing |1.7.1| | 1 |
| Centre Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Inner Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Throttle operating incorrectly sticking |6.2.1f| | 1 |
| Offside Footrest insecure splitpin missing |6.2.1a| | 1 |
| Front Brake lever insecure pivot bolt locknut missing |3.1.2a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride chain circlip direction incorrect |6.2.1h| | 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 missing |1.2.3a| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Rear Brake component is severely distorted |3.1.5| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Rear Wheel spoke cracked. |4.2.1b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |