| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 25 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 13 |
| Registration plate issues | 11 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 10 |
| Brake hose excessively deteriorated | 10 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Horn not working |1.7.3a| | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| 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| | 8 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Throttle operating incorrectly |6.2.1f| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Riders seat insecure |6.2.1a| | 4 |
| Fuel system component leaking |7.2.1a| | 4 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Brake pipe excessively corroded | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front position lamp missing |1.1.1a| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Steering lock stop ineffective |2.1.3| | 2 |
| Nearside Rear Footrest insecure |6.2.1a| | 2 |
| Offside Rear Footrest insecure |6.2.1a| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Offside Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Nearside Front Front shock absorber leaking oil |9.2.7b| | 1 |
| Offside Front Front shock absorber leaking oil |9.2.7b| | 1 |
| Front brake disc contaminated by oil |3.5.1h| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Front Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 1 |
| Nearside Rear Rear reflector not red in colour |1.5.1d| | 1 |
| Offside Rear Rear reflector not red in colour |1.5.1d| | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Rear parking brake recording little or no effort | 1 |
| Offside Indicator tell tale inoperative |1.4.A.2a| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Brake lever is damaged and the brake cannot be readily applied front |3.1.3c| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Offside Front Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Front Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Front Brake lever attachment screws missing |3.1.2b| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Brake locking device insecure |3.2.A1e| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear 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 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front Indicator tell tale not functioning |1.5.2| | 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 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Rear Stop lamp missing |4.3.1 |a| |ii|| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Brake performance not tested |3.3| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock Lock stops missing |2.1.4 |b|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Brake lever excessively damaged |3.2.A1c| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Stop lamp deteriorated and function impaired stop light and rear light are working wrong way round |1.3.3a| | 1 |
| Rear wheel bearings are excessively tight |2.4.A.2c| | 1 |
| Centre Upper An item not tested |Manual| | 1 |
| Inner Front Horn not working |1.7.3a| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Central Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Offside Exhaust has part of the system excessively deteriorated |7.1.1a| | 1 |
| Upper Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Front wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear Rear wheel spindle loose |2.4.A.2b| | 1 |
| Roller brake test indicates excessive fluctuation of brake effort (3.3.A1d) | 1 |
| Horn not working (1.7.3a) | 1 |
| Headlamp dipped beam affected by the operation of another lamp (1.2.2c) | 1 |
| Headlamp main beam affected by the operation of another lamp (1.2.2c) | 1 |
| Rear wheel bearings have excessive free play (2.4.A.2c) | 1 |
| Steering headbearing has excessive free play (2.2.2) | 1 |
| Front Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Rear 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 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Headlamp aim beam image too far to the right |1.6.4| | 1 |
| Brake lever pivots excessively worn |3.1.3a| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Rear Chain guard insecure |6.2.1c| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort 9 Squares |3.3.A1d| | 1 |
| Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Riders seat missing |6.2.1a| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Indicator switch insecure |1.5.4| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Outer Fuel hose leaking |7.2.1a| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Headlamp aim beam image too far to the right |1.6.4| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Stop lamp remains on when the brakes are released | 1 |