| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 21 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 11 |
| Horn not working |1.7.3a| | 10 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 5 |
| Stop lamp remains on when the brakes are released | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Registration plate lamp issues | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Steering damper ineffective |2.1.2d| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Brake fluid not visible (1.1.10 (d) (iii)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Offside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Steering lock stop missing |2.1.3| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies inoperative from front lever |1.3.1a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Brake hose damaged | 1 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Stop lamp does not illuminate immediately a brake applies both front and rear brake lights |1.3.1a| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Front Brake disc|s| insecure loose rivets |3.2.A1g| | 1 |
| Rear Brake hose which buldges |3.2.B4| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| 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 |
| Offside Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Throttle operating incorrectly no free play |6.2.1f| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Fuel system component leaking |7.2.1a| | 1 |
| Rear Rear suspension component loose |2.4.A.1a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Direction indicator obviously incorrectly positioned |4.4.3 |a|| | 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 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Rear Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Rear suspension bush has excessive free play rear swinging arm |2.4.A2a|i|| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Steering damper in such a condition that the steering action is impaired. |2.1.2d| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front Wheel excessively distorted |5.2.2 |c| |i|| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded rear brake holding on |3.2.A1h| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Headlamp aim beam image kick up to the offside (1.6) | 1 |
| Rear Suspension component has excessive wear or free play paralever bearings (5.3.3 (d)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Brake cylinder operating mechanism has excessive travel (1.1.16 (e) (i)) | 1 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Nearside Front Brake hose bulging under pressure (1.1.12 (d)) | 1 |
| Nearside Front Brake hose leaking (1.1.12 (c)) | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front Brake lagging in operation (1.2.1 (d)) | 1 |
| Rear Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |