| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 22 |
| Registration plate issues | 21 |
| Headlamp aim out of alignment | 15 |
| Front wheel bearings have excessive free play |2.3.5b| | 11 |
| Front wheel bearings are excessively rough |2.3.5b| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Horn not working |1.7.3a| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 2 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Front Shock absorber has a serious fluid leak both forks leadking (5.3.2 (b)) | 1 |
| Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Suspension arm pin or bush excessively worn link to swing arm bush (5.3.4 (a) (i)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure rear mudgaurd not secure (6.1.1 (b) (i)) | 1 |
| Rear Brake disc insecure (1.1.14 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Lower Drive chain so worn it is likely to fail chain roller (6.1.7 (c) (ii)) | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Brake hose excessively deteriorated | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Upper Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Rear Brake disc|s| insecure |3.2.A1g| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Upper Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| An item not tested |Manual| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Rear Upper Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Rear Suspension arm pin or bush excessively worn swinging arm |5.3.4 |a| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Horn missing |1.7.1| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies Front brake operation |1.3.1a| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |