| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 11 |
| Headlamp aim out of alignment | 9 |
| Registration plate lamp issues | 7 |
| Registration plate issues | 7 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 5 |
| Rear reflector missing |4.8.2 |a| |ii|| | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Rear Wheel fixing missing |single fixing| split pin missing |5.2.1 |a| |ii|| | 2 |
| Front Brake grabbing severely unable to apply smoothly |1.2.1 |c|| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| 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)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Centre Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Handlebar deformed bent back |2.1.1b| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 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 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Drive chain excessively tight due to being rusty and seized. needs replacing. |6.2.1d| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Rear Lower Shock absorber has an excessively worn bush marked (5.3.2 (c)) | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Central Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Exhaust excessively deteriorated Rusted true downpipe. |7.1.1a| | 1 |
| Front wheel insecure Front wheel bearing need to be replaced. |4.2.3b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear suspension movement is excessively stiff Linkage system not free of movement, needle roller bearings to be replaced. |2.4.A.3b| | 1 |
| Brake performance not tested |3.3| | 1 |
| Offside Front Upper Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Brake hose damaged | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Rear All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Forks excessively deformed (2.2.2 (d) (i)) | 1 |
| Front Wheel damaged or distorted to the extent that control of the motorcycle is likely to be adversely affected (5.2.2 (c) (ii)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Footrest missing both (6.2.12 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| All direction indicators missing |4.4.1 |a| |ii|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Suspension component ball joint excessively worn |5.3.4 |a| |i|| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Brake lever has inadequate reserve travel disc warped |3.1.3b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort disc warped |3.3.A1d| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Wheel fixing loose (single fixing) rear spindle locking device missing. (5.2.1 (a) (ii)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Front Brake fluid significantly below minimum mark |1.1.10 |d| |ii|| | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Rear All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Offside Rear All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Lower Suspension component pin or bush excessively worn link bearings worn (5.3.4 (a) (i)) | 1 |
| Nearside Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Rear reflector on motorcycle missing (1.4.1) | 1 |
| Front Brake disc significantly and obviously worn Front rotor is warped and can be felt on the brake lever. (1.1.14 (a) (i)) | 1 |
| Front Wheel excessively distorted |5.2.2 |c| |i|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Wheel spoke excessively loose multiple (5.2.2 (d)) | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal leaking oil |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak fork seal leaking oil |5.3.2 |b|| | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Brake excessively binding |1.2.1 |f|| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Shock absorber has negligible damping effect seized shock and or rising rate linkage. (5.3.2 (b)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp aim not tested bulb innoperative on dipped beam (4.1.2 (b)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Suspension component modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Rear Direction indicator likely to become detached both held on with tape (4.4.1 (c) (ii)) | 1 |
| Headlamp aim not tested due to innoperative rear suspension (4.1.2 (b)) | 1 |