| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 38 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 13 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 11 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Horn not working |1.7.3a| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Brake hose damaged | 5 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 5 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Front Position lamp not working |4.2.1 |a|| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Headlamp switch faulty |1.2.4| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Registration plate issues | 2 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Shock absorber has a serious fluid leak fork legs worn |5.3.2 |b|| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Outer Front Upper Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Upper Throttle operating incorrectly |6.2.1f| | 1 |
| Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Offside Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Lower Front position lamp missing |1.1.1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Stop lamp emits other than a steady red light faulty front switch |1.3.1b| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Front Brake hose stretched by steering movement |3.2.B3b| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Nearside Front Brake caliper leaking and braking performance affected |1.1.16 |b| |ii|| | 1 |
| Nearside Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Offside Front Brake pipe excessively damaged |3.2.B2a| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Centre Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Offside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Position lamp not working Tail light |4.2.1 |a|| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Brake hose excessively deteriorated | 1 |
| Decelerometer brake test no brake control achieves an efficiency of 30% |3.3.E1a| | 1 |
| Decelerometer brake test neither brake control achieves an efficiency of 25% |3.3.E1c| | 1 |
| Front Brake component is fractured |3.1.5| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Braking system leaking |3.6.A.1| | 1 |
| Rear Shock absorbers has a serious fluid leak Both |5.3.2 |b|| | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Front Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Motorcycle structure has a fracture which is likely to adversely affect braking or steering (6.1.1 (a) (ii)) | 1 |
| Brake pedal cracked |3.1.2c| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| An item not tested |Manual| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Rear Brake pedal cracked |3.1.2c| | 1 |
| Rear Brake hose excessively twisted |3.2.B3a| | 1 |
| Nearside Indicator switch insecure |1.5.4| | 1 |
| Brake pipe inadequately supported |3.2.B2b| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Stop lamp insecure |1.3.3b| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Nearside Brake component is fractured |3.1.5| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Offside Rear Brake pipe excessively chafed |3.2.B2a| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |