| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 30 |
| Headlamp aim out of alignment | 20 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 12 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Nearside Steering lock stop ineffective |2.1.3| | 8 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 7 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Registration plate issues | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Fuel cap sealing washer missing |7.2.2c| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Nearside Steering lock stop missing |2.1.3| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 5 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Registration plate lamp issues | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Offside Steering lock stop ineffective |2.1.3| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Nearside Front Steering lock stop missing |2.1.3| | 3 |
| Offside Rear Direction indicators not working |1.5.1c| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Indicator switch defective |1.5.4| | 3 |
| Headlamp switch faulty |1.2.4| | 3 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Horn control not functioning. |1.7.2b| | 2 |
| Steering lock stop ineffective |2.1.3| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 2 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Front Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 2 |
| Rear Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Steering lock stop ineffective |2.1.3| | 2 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Offside Steering lock stop maladjusted |2.1.3| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp not working Brake light switch |4.3.1 |a| |ii|| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp reflector seriously defective headlight low to high beam no correct (4.1.1 (b) (ii)) | 1 |
| Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced engine bushes worn out (6.1.1 (b) (ii)) | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Nearside Rear Outer Brake lever insecure |1.1.2 |e| |i|| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Headlamp not working on dipped beam changed bulb |4.1.1 |a| |ii|| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Horn control defective |1.7.2a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Fuel hose leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Outer Front Direction indicator not working |1.5.1c| | 1 |
| Outer Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake lever pivots excessively worn |3.1.3a| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake lever cracked |3.1.2c| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Riders seat insecure not locking |6.2.5 |a| |ii|| | 1 |
| Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Nearside Front Steering linkage locking device missing |2.1.3 |d|| | 1 |
| Rear suspension component cracked |2.4.A.1a| | 1 |
| Rear Brake lever mounting cracked |3.1.2c| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Upper Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 1 |
| Front Lower Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 1 |
| Nearside Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Offside Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Front Fork yoke in such a condition that steering control is adversely affected (2.2.2 (d) (ii)) | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Stop lamp not working Front brake switch faulty (4.3.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate immediately a brake applies offside switch or wiring failed |1.3.1a| | 1 |
| Offside Brake lever is damaged and the brake cannot be readily applied bent forward, cannot get full access |3.1.3c| | 1 |
| Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Steering linkage locking device ineffective |2.1.3 |d|| | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Nearside Front Upper Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Brake cable has a significantly damaged outer casing. |3.2.A1b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear reflector on sidecar incorrectly positioned |1.4.2d| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Handlebar grip insecure to handlebar Left side (2.2.1 (d) (ii)) | 1 |
| Rear Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |