| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4 |
| Horn not working |1.6.2a| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear suspension has a fracture of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Centre Front Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Service brake efficiency less than 50% of the required value |1.2.2 |a| |ii|| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| All position lamps not working |1.1.A.3b| | 1 |
| Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Front Headlamp not working on main beam |1.7.5a| | 1 |
| Registration plate lamp issues | 1 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Hazard warning lamps inoperative |1.4.B.1b| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Hazard warning tell tale not working correctly |1.4.B.1e| | 1 |
| Service brake: efficiency below requirements |3.7.C.1a| | 1 |
| Parking brake efficiency below requirements |3.7.E.1| | 1 |
| Front brake disc contaminated by oil |3.5.1h| | 1 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front Shock absorber has a serious fluid leak fork seal |2.7.3| | 1 |
| Centre Front Fuel cap/sealing device sealing washer missing |7.2.4c| | 1 |
| Nearside Front brake caliper leaking |3.6.A.1| | 1 |
| Centre Front Brake pipe leaking |3.6.A.1| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear reflector missing |1.5.1a| | 1 |
| Offside Rear reflector missing |1.5.1a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Rear Parking brake lever is located so that it cannot be satisfactorily operated from the driver`s seat |3.1.3c| | 1 |
| Nearside Rear Tie bar/rod insecure |2.4.G.1| | 1 |
| Rear Exhaust system not adequately supported |7.1.1| | 1 |
| Nearside Rear Torque/reaction arm attachment bracket modified and seriously weakened |2.4.A.2| | 1 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Brake pipe inadequately supported |3.6.B.1| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition |7.1.4| | 1 |
| Exhaust has a part missing |7.1.1a| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Front Braking system leaking |3.6.A.1| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |