| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 16 |
| Headlamp aim out of alignment | 11 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Registration plate issues | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Riders seat insecure |6.2.5 |a| |ii|| | 3 |
| Fuel cap sealing washer missing |7.2.2c| | 3 |
| Steering lock stop ineffective |2.1.3| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Brake lever insecure |3.1.2a| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Steering lock stop ineffective |2.1.3| | 2 |
| Nearside Steering lock stop missing |2.1.3| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Offside Steering lock stop missing |2.1.3| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced rear top box holder |6.1.1 |b| |ii|| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp aim beam image kick up to the offside Masked lens to correct image. |1.6| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Rear Brake cable badly frayed |3.2.A1b| | 1 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Horn missing |1.7.1| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Fuel cap missing |7.2.2a| | 1 |
| Nearside Steering lock stop maladjusted |2.1.3| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Fairing so located that it is likely to impede the steering wiring and control unit impede stearing |2.1.2e| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Registration plate lamp issues | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Rear suspension bush has excessive free play Rear Suspension/Engine Mounts |2.4.A2a|i|| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Front brake lever locking device |6.2.1h| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Central Rear Lower Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Central Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Central Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Front Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Motorcycle structure excessively distorted rear swingarm bent needs replacing |6.1.1a| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Centre Front Upper Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Brake drum significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Rear Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock Stop locks failed (2.1.4 (a)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Rear Upper Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced (6.1.1 (b) (ii)) | 1 |
| Steering linkage locking device ineffective both lock stops (2.1.3 (d)) | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Front Brake fluid contaminated |1.8 |a|| | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |