| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 35 |
| Registration plate issues | 24 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 20 |
| Horn not working |1.7.3a| | 17 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 11 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Rear reflector on motorcycle missing |1.4.1| | 11 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 8 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 7 |
| Front suspension has inadequate damping effect. |2.3.6c| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Headlamp insecure |1.2.3b| | 6 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Offside Front Direction indicator not working |1.5.1c| | 5 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Drive chain excessively tight |6.2.1d| | 4 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 4 |
| Fuel system component leaking |7.2.1a| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 4 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Front Horn not working |1.7.3a| | 4 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 4 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Rear Direction indicator not working |1.5.1c| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Offside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Rear Brake hose leaking fluid |3.2.B4| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Direction indicator not working |1.5.1c| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Fuel tank leaking |7.2.1a| | 2 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Front position lamp insecure |1.1.1c| | 2 |
| Registration plate lamp issues | 2 |
| Offside Rear Footrest insecure |6.2.1a| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 2 |
| Front suspension assembly component missing |2.3.1| | 2 |
| Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Horn control not readily accesible. |1.7.2a| | 1 |
| Offside Upper Front suspension assembly component missing |2.3.1| | 1 |
| Fuel system component leaking excessively or a risk of fire leaking fuel from beneath carburettors (float bowl area) (6.1.3 (b) (ii)) | 1 |
| Position lamp switch does not operate the front and rear position lamps |1.1.4c| | 1 |
| Front Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Nearside Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Centre Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Brake lever is inoperative |3.1.3c| | 1 |
| Nearside Exhaust mounting missing |7.1.1c| | 1 |
| Offside Exhaust mounting missing |7.1.1c| | 1 |
| Offside Front Footrest missing |6.2.1a| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Offside Rear Brake locking device missing |3.2.A1e| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Front Brake reaction bracket excessively worn bolt loose |1.1.15 |b|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Wheel fixing missing |single fixing| spindle castle nut split pin missing |5.2.1 |a| |ii|| | 1 |
| Offside Upper Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Steering lock stop maladjusted |2.1.3| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Nearside Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Brake pipe excessively corroded | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Brake pipe excessively damaged |3.2.B2a| | 1 |
| Nearside Rear suspension has an inadequate repair of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Offside Rear suspension has an inadequate repair of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Nearside Rear Direction indicator obscured |1.5.1a| | 1 |
| Offside Rear Direction indicator obscured |1.5.1a| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Rear Rear position lamp does not face the rear |1.1.1d| | 1 |
| Chain guard fouling another component |6.2.1c| | 1 |
| Nearside Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Horn emits 2 or more alternating tones with indicators on |1.7.3b| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Upper Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Lower Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Upper Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Lower Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Front position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Offside Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Brake component has an inadequate repair front pads fitted wrong |3.1.5| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Rear Wheel fixing missing (single fixing) (5.2.1 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired no checkable pattern-bulb? |1.2.3a| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Offside Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 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 Footrest insecure |6.2.1a| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Offside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Brake linkage excessively damaged |3.2.A1c| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Front Brake cylinder leaking (1.1.16 (b) (i)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Chain guard insecure (6.1.7 (i)) | 1 |
| Upper Riders seat insecure |6.2.1a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Front Brake locking device missing |3.2.A1e| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| An item not tested |Manual| | 1 |
| Nearside Rear Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Offside Rear Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Offside Front Direction indicator light intensity significantly reduced |4.4.3 |a|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 1 |
| Centre Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Rear brake binding | 1 |
| Front suspension has a modification which reduces the strength of a load bearing member or its supporting structure. |2.3.8| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Brake component defective due to a deliberate modification which significantly reduces the original strength |3.1.5| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear An item not tested |Manual| | 1 |
| Front Headlamp not working on dipped beam new bulb |4.1.1 |a| |ii|| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |