| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 39 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 13 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 12 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 11 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Stop lamp remains on when the brakes are released | 11 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Registration plate issues | 8 |
| Horn not working |1.7.3a| | 6 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake excessively binding |1.2.1 |f|| | 2 |
| Steering damper ineffective |2.1.2d| | 2 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Offside Front Upper Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Brake disc|s| insecure |3.2.A1g| | 1 |
| Nearside Brake disc|s| insecure |3.2.A1g| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Centre Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Nearside Rear Stop lamp obscured |1.3.1c| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Rear Sidecar direction indicator obscured |1.5.1a| | 1 |
| Sidecar rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Nearside Steering lock stop missing |2.1.3| | 1 |
| Front wheel bearings are excessively tight |2.3.5b| | 1 |
| Steering lock stop maladjusted |2.1.3| | 1 |
| Front Brake component leaking fluid |3.2.B4| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Steering damper ineffective |2.1.2d| | 1 |
| Front Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Rear Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component ball joint loose |2.3.4| | 1 |
| Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Offside Rear Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Upper Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Central Front Fork yoke insecure |2.2.2 |d| |i|| | 1 |
| Lower Front suspension assembly component loose ball joint on lower yoke |2.3.1| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Brake hose excessively deteriorated | 1 |
| Steering damper in such a condition that the steering action is impaired. |2.1.2d| | 1 |
| Nearside Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Brake hose which buldges |3.2.B4| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Position lamp light intensity significantly reduced |4.2.3 |a| |ii|| | 1 |
| Front Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Steering damper ineffective leaking |2.1.4 |d| |i|| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Throttle operating incorrectly not returning and reving |6.2.7 |a| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Offside Front Brake lining(s) contaminated oil from fork seal (1.1.13 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak seal leaking (5.3.2 (b)) | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Brake component insecure Retaining clip missing from left caliper (1.1.21 (c)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Brake master cylinder defective but brake still operating cylinder pumping up (1.1.10 (b) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Registration plate lamp issues | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Steering damper in such a condition that the steering action is adversely affected (2.1.4 (d) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Brake component inadequately mounted Brake caliper pin locking clip missing. (1.1.21 (c)) | 1 |