| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 40 |
| Rear reflector on motorcycle missing |1.4.1| | 29 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 14 |
| Registration plate issues | 11 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Front wheel bearings are excessively rough |2.3.5b| | 10 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 8 |
| Throttle operating incorrectly |6.2.1f| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Offside Footrest insecure |6.2.1a| | 5 |
| 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| | 5 |
| Horn not working |1.7.3a| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Offside Front Direction indicator not working |1.5.1c| | 4 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Nearside Footrest insecure |6.2.1a| | 2 |
| Front Brake pipe inadequately supported |3.2.B2b| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Chain guard insecure |6.2.1c| | 2 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Offside 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 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Rear Brake disc significantly and obviously worn worn below minimum thickness (1.1.14 (a) (i)) | 1 |
| Stop lamp does not illuminate immediately a brake applies from foot brake |1.3.1a| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Steering headbearing excessively stiff or notchy when lowered (2.2.2 (f) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Offside Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Fuel tank insecure |6.1.3 |a| |i|| | 1 |
| Offside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Brake performance not tested |3.3| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Fuel system component insecure |7.2.1b| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Motorcycle structure excessively damaged mirror damaged causing sharp edge/projection |6.1.1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Nearside Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Brake component cracked and seriously reduced in strength |3.2.A1| | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Upper Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Chain guard fouling another component |6.2.1c| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake hose excessively kinked |3.2.B3a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Inner Rear mono-shock insecure |2.4.B.4| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| An item not tested |Manual| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Centre Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Centre Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Front Steering lock stop ineffective |2.1.3| | 1 |
| Offside Front Upper Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Offside Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Lower Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Offside Front Lower Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Nearside Front Lower Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Lower Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Rear Lower Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Nearside Rear Lower Drive chain excessively tight |6.2.1d| | 1 |
| Centre Rear Lower Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Centre Rear Upper Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Centre Rear Lower Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Lower Front position lamp insecure |1.1.1c| | 1 |
| Central Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear reflector on motorcycle deteriorated and function impaired |1.4.2a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake component damaged and seriously reduced in strength |3.2.A1| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Brake disc|s| cracked |3.2.A1g| | 1 |
| Brake hose damaged | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Front Brake disc contaminated Disc contaminated with oil. (1.1.14 (b)) | 1 |
| Central Rear Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Central Rear Brake caliper damaged and braking performance affected Rear brake caliper slightly seized brake binding. (1.1.16 (a) (ii)) | 1 |
| Nearside Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Brake pedal attachment screws loose |3.1.2b| | 1 |
| Brake pedal mounting insecure |3.1.2a| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Brake back plate|s| insecure incorrect fitting |3.2.A1j| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Rear Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake hose excessively twisted |3.2.B3a| | 1 |
| Front Lower Fairings insecure and likely to impede the steering |2.1.2e| | 1 |