| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 53 |
| Headlamp aim out of alignment | 48 |
| Registration plate issues | 42 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 9 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Throttle operating incorrectly |6.2.1f| | 9 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 8 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Horn not working |1.7.3a| | 8 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 7 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 7 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 6 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 4 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 4 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 4 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Brake locking device missing |3.2.A1e| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Rear Brake disc|s| cracked |3.2.A1g| | 3 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 3 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 3 |
| Rear Drive chain excessively loose |6.2.1d| | 3 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Offside Rear Footrest missing |6.2.1a| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Brake hose damaged | 3 |
| Registration plate lamp issues | 3 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 2 |
| 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 reflector on motorcycle incorrectly positioned |1.4.2d| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Nearside Direction indicator not working |1.5.1c| | 2 |
| Offside Direction indicator not working |1.5.1c| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Rear Drive chain worn to excess |6.2.1e| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Fuel system component insecure |7.2.1b| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Exhaust mounting does not fully support the exhaust system insecure |7.1.1.c| | 1 |
| Direction indicators not working will need removal day light test |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies will need removed day light test |1.3.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Handlebar mounting clamp bolt missing |2.1.1a| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Offside Front Upper Handlebar mounting clamp bolt missing |2.1.1a| | 1 |
| Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Brake component has an inadequate repair |3.1.5| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear Brake pedal attachment screws loose |3.1.2b| | 1 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Rear Brake pipe union leaking fluid |3.2.B4| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Rear Motorcycle structure cracked |6.1.1a| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Stop lamp does not illuminate immediately a brake applies brake light switch corroded |1.3.1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Splitpin in rear wheel spindle nut. |6.2.1h| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Offside Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Centre Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Motorcycle structure cracked |6.1.1a| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Centre Rear All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Nearside Position lamp switch insecure |1.1.4b| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Steering damper insecure |2.1.2d| | 1 |
| Steering damper in such a condition that the steering action is impaired. |2.1.2d| | 1 |
| Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Centre Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Rear position lamp insecure |1.1.1c| | 1 |
| Rear Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Headlamp main beam affected by the operation of another lamp R/H headlamp faulty |1.2.2c| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Offside Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| An item not tested |Manual| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Throttle operating incorrectly Not returning correctly. |6.2.1f| | 1 |
| Rear reflector on motorcycle deteriorated and function impaired |1.4.2a| | 1 |
| Offside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil Replaced seal |2.3.3| | 1 |
| Nearside Handlebar mounting clamp bolt missing |2.1.1a| | 1 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Nearside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Drive chain excessively tight |6.2.1d| | 1 |
| Centre Rear Upper Rear mono-shock insecure |2.4.B.4| | 1 |
| Offside Rear Upper Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Offside Front Upper Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Offside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Front Lower Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Wheel more than one fixing loose |5.2.1 |a| |ii|| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake hose stretched by steering movement |3.2.B3b| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Centre Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear suspension component cracked swinging arm |2.4.A.1a| | 1 |
| Centre Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 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 system component leaking |6.1.3 |b| |i|| | 1 |
| Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Upper Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Front Upper Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Centre Rear Upper Rear position lamp missing |1.1.1a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Throttle operating incorrectly throttle sticking (6.2.7 (a) (i)) | 1 |
| Front Headlamp not working on dipped beam both (4.1.1 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Fuel tank leaking (6.1.3 (b) (i)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride (6.2.1h) | 1 |
| Headlamp aim beam image kick up to the offside (1.6) | 1 |
| Horn not working (1.7.3a) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Offside Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Offside Front Lower Shock absorber has a serious fluid leak Front right fork seal is leaking (5.3.2 (b)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Brake disc insecure Bobbins excessively worn (1.1.14 (a) (ii)) | 1 |
| Stop lamp not working hand (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |