| Most common failures | No# failures |
|---|
| Registration plate issues | 16 |
| Headlamp aim out of alignment | 8 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Horn not working |1.7.3a| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| 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| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle cable incorrectly mounted (6.2.7 (a) (ii)) | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| All position lamps do not illuminate immediately when switched on all lamps not working |1.1.3a| | 1 |
| Wheel bearing play so excessive it is likely to break up rear |5.1.3 |a| |ii|| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Brake linked system has an excessively worn caliper pivot. |3.2.B5| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Front shock absorber seal failed and leaking oil off side and near side |2.3.3| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Horn missing |1.7.1| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Steering lock stop maladjusted both front |2.1.3| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear reflector on motorcycle missing (1.4.1) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Suspension component pin or bush excessively worn lower linkage |5.3.4 |a| |i|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Nearside Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |