| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 22 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 18 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Horn not working |1.7.3a| | 11 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Registration plate issues | 9 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Drive chain excessively loose |6.2.1d| | 7 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 7 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 6 |
| Front suspension has inadequate damping effect. |2.3.6c| | 5 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 5 |
| Front Wheel spoke excessively loose |4.2.1b| | 5 |
| Headlamp insecure |1.2.3b| | 4 |
| Direction indicators not working |1.5.1c| | 4 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 4 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Brake locking device missing |3.2.A1e| | 3 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear Wheel spoke excessively loose |4.2.1b| | 3 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Offside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| 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| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Offside Footrest insecure |6.2.1a| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Offside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Front Fork yoke deformed |2.1.1b| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| An item not tested |Manual| | 2 |
| Rear Rear suspension component seized |2.4A2a|ii|| | 2 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| Front position lamp insecure |1.1.1c| | 1 |
| Nearside Fuel system component insecure |7.2.1b| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Lower Front suspension assembly component loose |2.3.1| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Central Front Steering linkage ball joint has excessive play Head Bearings loose (2.1.3 (b) (i)) | 1 |
| Offside Rear Brake component insecure Brake Anchorage arm . (1.1.21 (c)) | 1 |
| Nearside Rear Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| All direction indicators missing All are removed. (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls Front brake light switch missing (4.3.2 (a) (iii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Nearside Footrest insecure (6.2.12 (a)) | 1 |
| Offside Footrest insecure (6.2.12 (a)) | 1 |
| Upper Brake rod insecure (1.1.15 (c)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Inner Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Inner Rear Lower Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Inner Rear Lower Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front Upper Direction indicators not working |1.5.1c| | 1 |
| Inner Rear Lower Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Inner Front Upper Handlebar deformed |2.1.1b| | 1 |
| Inner Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Stop lamp not working front brake (4.3.1 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Headlamp light intensity severely reduced with brake light on (4.1.4 (a)) | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Wheel corroded significantly reducing the original strength |4.2.1a| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 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 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake cable excessively corroded |3.2.A1b| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Direction indicators not working off side |1.5.1c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Headlamp insecure headlamp brackets insecure |1.2.3b| | 1 |
| Front Front wheel spindle loose |2.3.3a| | 1 |
| Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Nearside Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Nearside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Upper Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Offside Rear Lower Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Suspension component modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Exhaust mounting missing |7.1.1c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected sticking throttle (6.2.7 (a) (ii)) | 1 |
| Offside Rear Shock absorber likely to become detached (5.3.2 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Upper Front position lamp incorrect colour |1.1.2a| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Front Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Horn sounds harsh or grating |1.7.3c| | 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 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Front Gradient brake test indicates a binding brake |3.3.D1c| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Brake lever pivots excessively worn |3.1.3a| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Nearside Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Offside Brake locking device missing Split Pin |3.2.A1e| | 1 |
| Rear suspension bush has excessive free play Swingarm loose. |2.4.A2a|i|| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |