| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 23 |
| Registration plate issues | 13 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Throttle operating incorrectly |6.2.1f| | 7 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Horn not working |1.7.3a| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Registration plate lamp issues | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Front Brake hose stretched by suspension movement |3.2.B3b| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Nearside Front Brake pipe excessively damaged |3.2.B2a| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Motorcycle structure adversely modified |6.1.1b| | 1 |
| Rear Rear shock absorber has inadequate damping effect. Air leak |2.4.A.3b| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Rear Brake cylinder severely corroded |3.2.B1b| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear mono-shock insecure |2.4.B.4| | 1 |
| Rear Brake pipe union leaking fluid |3.2.B4| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front An item not tested |Manual| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Central Front Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Central Front Upper Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Centre Rear Drive chain excessively tight |6.2.1d| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 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 |
| Headlamp aim not tested |1.6| | 1 |
| Offside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Riders seat insecure |6.2.1a| | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Brake hose excessively deteriorated | 1 |
| Nearside Front Brake hose fouling |3.2.B3b| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Drive chain horseshoe locking device likely to become detached **MISSING** (6.1.7 (j) (ii)) | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Nearside Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Brake hose damaged | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Offside Steering lock stop missing |2.1.3| | 1 |
| Offside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Centre Rear Rear position lamp missing |1.1.1a| | 1 |
| Offside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen both (4.1.2 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Shock absorber has a serious fluid leak L/H fork seal |5.3.2 |b|| | 1 |
| Brake disc contaminated L/H brake disc contaminated with fork oil |1.1.14 |b|| | 1 |
| Rear Brake cylinder insecure (1.1.16 (c) (i)) | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Central Front Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced (6.1.1 (c) (i)) | 1 |
| Central Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak Fork oil seal leaking (5.3.2 (b)) | 1 |
| Front Lower Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Front Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear Brake back plate|s| securing bolt|s| missing |3.2.A1j| | 1 |