| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 24 |
| Registration plate issues | 6 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Riders seat insecure |6.2.1a| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Registration plate lamp issues | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside 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 |
| Nearside Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Nearside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Centre Front Fuel system component insecure |7.2.1b| | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Horn not working |1.7.3a| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Fuel system component leaking |7.2.1a| | 1 |
| Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Offside Front Brake locking device missing |3.2.A1e| | 1 |
| Offside Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Direction indicator obviously incorrectly positioned 180mm (4.4.3 (a)) | 1 |
| Front Direction indicator obviously incorrectly positioned 240 (4.4.3 (a)) | 1 |
| Throttle operating incorrectly revs up on r/hand lock (6.2.7 (a) (i)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up **********wheel loose so may tighten up************ (5.1.3 (a) (ii)) | 1 |
| Front Brake clevis joint insecure rear brake torque arm incorrectly mounted (1.1.15 (c)) | 1 |
| Rear Brake clevis joint insecure rear brake torque arm incorrectly mounted (1.1.15 (c)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Front Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Fuel pipe union leaking |7.2.1a| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 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 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Front position lamp insecure |1.1.1c| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Front suspension assembly component loose |2.3.1| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Front Brake lever has restricted free movement |1.1.15 |e|| | 1 |
| Front Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Rear Stop lamp not working front brake lever not operating brake light |4.3.1 |a| |ii|| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Footrest missing Both passenger (6.2.12 (a)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride Horseshoe link |6.2.1h| | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Brake hose which buldges |3.2.B4| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Offside Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |