| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 41 |
| Rear reflector on motorcycle missing |1.4.1| | 27 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 13 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Riders seat insecure |6.2.1a| | 12 |
| Registration plate issues | 12 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 8 |
| 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| | 7 |
| Horn not working |1.7.3a| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Drive chain excessively tight |6.2.1d| | 4 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Nearside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Front Direction indicator not working |1.5.1c| | 2 |
| Rear Direction indicator not working |1.5.1c| | 2 |
| Rear position lamp insecure |1.1.1c| | 2 |
| Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Offside Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Centre Front Lower Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Rear Upper 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 Upper Front position lamp missing |1.1.1a| | 1 |
| Centre Rear Upper Footrest missing |6.2.1a| | 1 |
| Centre Front Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Brake lever attachment screws missing |3.1.2b| | 1 |
| Nearside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front Headlamp switch faulty |1.2.4| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Rear Drive chain excessively tight |6.2.1d| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front An item not tested |Manual| | 1 |
| Rear An item not tested |Manual| | 1 |
| Rear Rear reflector on sidecar missing |1.4.1| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Front Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Front Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Stop lamp insecure |1.3.3b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Front Position lamp switch does not operate the front and rear position lamps |1.1.4c| | 1 |
| Nearside 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 |
| Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Upper Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Front Brake component is fractured |3.1.5| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Brake hose which buldges |3.2.B4| | 1 |
| Nearside Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Centre Front Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Brake hose damaged | 1 |
| Rear Brake pedal attachment screws loose |3.1.2b| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 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 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Built up wheel has a loose bolt/s |4.2.1c| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Lower Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Upper 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 Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Nearside Rear Brake locking device missing |3.2.A1e| | 1 |
| Nearside Front Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Front Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Rear Wheel has bolts/rivets missing or loose to the extent that control of the motorcycle is likely to be adversely affected |5.2.2 |e| |ii|| | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 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 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Wheel fixing missing (single fixing) rear wheel nut locking device was missing.(split pin) (5.2.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |