| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 27 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Registration plate issues | 5 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Handlebar deformed |2.1.1b| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Direction indicators not working |1.5.1c| | 2 |
| Nearside Front Direction indicator insecure |1.5.3b| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Nearside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Rear shock absorber has inadequate damping effect. (2.4.A.3b) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Outer Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Front Drive chain worn to excess |6.2.1e| | 1 |
| Centre Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Nearside Front Upper Direction indicators not working |1.5.1c| | 1 |
| Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 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 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Rear Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front shock absorber seal failed and leaking oil left |2.3.3| | 1 |
| Front shock absorber seal failed and leaking oil right |2.3.3| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Brake performance not tested |1.2.1 |g|| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Chain guard fouling another component |6.2.1c| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil left hand fork leg leaking oil |2.3.3| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Brake locking device missing split pin missing from rear brake pedal clevis pin |3.2.A1e| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear An item not tested |Manual| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. (3.3.A2b) | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen kick up wrong way (4.1.2 (a)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Drive chain excessively tight (6.2.1d) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Front Roller brake test indicates a binding brake (3.3.A1a) | 1 |
| Throttle operating incorrectly (6.2.1f) | 1 |
| Headlamp insecure (1.2.3b) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Offside Front Upper Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Nearside Front Upper Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Exhaust system insecure Silencer. (6.1.2 (a)) | 1 |
| Rear Valve stem seriously damaged Perished. (5.2.3 (j)) | 1 |
| Rear All direction indicators obviously incorrectly positioned Indicators too close together. (4.4.3 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort (3.3.A1d) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Brake disc contaminated oil from shock (1.1.14 (b)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (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 |
| Stop lamp not working Cleaned spade contacts. OK. (4.3.1 (a) (ii)) | 1 |