| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 28 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Registration plate issues | 5 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Horn not working |1.7.3a| | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Registration plate lamp issues | 3 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Front Upper Indicator switch insecure |1.5.4| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies Front brake |1.3.1a| | 1 |
| Rear suspension component misaligned |2.4.A.1a| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Brake component inadequately mounted rear brake caliper support bracket (1.1.21 (c)) | 1 |
| Brake performance not tested see brake fault (1.2.1 (g)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Dipswitch does not operate immediately when selected on main beam |4.1.3 |b|| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Front wheel insecure |4.2.3b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Brake component leaking fluid Bleed nipple |3.2.B4| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort Spongy |3.3.A1c| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Steering operation restricted in free movement from lock to lock steering affected by incorrectly fitted throttle cables (2.1.4 (c)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Steering operation restricted in free movement from lock to lock Throttle cables impeding free movement steering to the left (2.1.4 (c)) | 1 |
| Wheel alignment incorrect which adversely affects the handling Chain adjusters badly misaligned (2.4 (a)) | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls wires broken to switch (4.3.2 (a) (iii)) | 1 |
| Nearside Front All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Brake lagging in operation |1.2.1 |d|| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort Over 10 sections of run out measured (1.2.1 (e)) | 1 |
| Rear Stop lamp not working REAR SWITCH U/S |4.3.1 |a| |ii|| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Stop lamp does not illuminate immediately a brake applies on front brake |1.3.1a| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Stop lamp not working control 1 (4.3.1 (a) (ii)) | 1 |
| Shock absorber has a serious fluid leak l/h fork seal leaking (5.3.2 (b)) | 1 |
| Handlebar so insecure it is likely to become detached r/h handlebar loose (2.2.1 (b) (ii)) | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Nearside Front Brake cable has restricted free movement |1.1.15 |e|| | 1 |
| Nearside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Brake lever cannot be applied smoothly lever fouling on throttle cables |3.1.3d| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Headlamp aim not tested headlamp not working |4.1.2 |b|| | 1 |
| Front Position lamp switch does not operate in accordance with the requirements High beam on stays on when low beam selected |4.2.2 |a|| | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |