| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 17 |
| Steering headbearing has excessive free play |2.2.2| | 10 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 7 |
| Horn not working |1.7.3a| | 7 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 7 |
| Stop lamp remains on when the brake is released |1.3.1e| | 7 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| An item not tested |Manual| | 3 |
| Registration plate issues | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Front All position lamps adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front suspension has excessive corrosion which reduces the strength of a load bearing member or its supporting structure. |2.3.8| | 2 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear Wheel spoke missing |4.2.1b| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Wheel spoke excessively loose |4.2.1b| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Rear Direction indicator insecure |1.5.3b| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Front Horn not working |1.7.3a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Brake grabbing severely |1.2.1 |c|| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| All direction indicators not working ALL (4.4.1 (a) (ii)) | 1 |
| All direction indicators adversely affected by the operation of another lamp ALL (4.4.3 (b)) | 1 |
| Stop lamp not working FRONT BRAKE (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working REAR BRAKE (4.3.1 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Rear All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Front Front position lamp missing |1.1.1a| | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Wheel corroded significantly reducing the original strength |4.2.1a| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Centre Front Front position lamp missing |1.1.1a| | 1 |
| Offside Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Rear position lamp insecure |1.1.1c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Wheel spoke excessively bent |4.2.1b| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front suspension assembly component excessively bent front forks |2.3.1| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Wheel alignment incorrect which adversely affects the steering forks |2.5.1| | 1 |
| Direction indicator flashing less than 60 times a minute all light up but dont flash |1.5.1c| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering forks bent - fender catching bodywork |2.1.2a| | 1 |
| Brake cable excessively corroded front cable broken |3.2.A1b| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Leg shield insecure and likely to impede the steering |2.1.2e| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced |6.1.1 |c| |i|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front suspension assembly component cracked |2.3.1| | 1 |
| Offside Rear suspension component excessively bent |2.4.A.1a| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Centre Front Lower Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Inner Rear Lower Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |