| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Horn not working |1.7.3a| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear reflector on motorcycle obscured |1.4.1| | 2 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| 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 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Offside Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Rear Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Shock absorber has an excessively worn bush fork leg internal bushes (5.3.2 (c)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak fork leg seal (5.3.2 (b)) | 1 |
| Rear Wheel more than one fixing missing SPLIT PIN MISSING |5.2.1 |a| |ii|| | 1 |
| Outer Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Registration plate issues | 1 |
| Rear Motorcycle structure excessively corroded swing arm |6.1.1a| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride axle |6.2.1h| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear Shock absorber has negligible damping effect |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 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Centre Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |