| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 22 |
| Registration plate issues | 14 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Horn not working |1.7.3a| | 4 |
| Offside Rear Direction indicator not working |1.5.1c| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Nearside Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Brake hose has insufficient room to move | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Rear Brake hose leaking fluid |3.2.B4| | 2 |
| Offside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 2 |
| Headlamp incorrect colour |1.2.1| | 2 |
| Registration plate lamp issues | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Stop lamp does not emit a steady light |1.3.1b| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Indicator switch defective |1.5.4| | 1 |
| Offside Rear Stop lamp switch with a delay in operation stuck on |4.3.2 |a| |ii|| | 1 |
| Offside Front Outer Brake caliper leaking and braking performance affected |1.1.16 |b| |ii|| | 1 |
| Fuel system component leaking |6.1.3 |b| |i|| | 1 |
| Offside Rear Upper Motorcycle structure has excessive corrosion which adversely affects braking or steering |6.1.1 |c| |ii|| | 1 |
| Nearside Rear Upper Motorcycle structure has excessive corrosion which adversely affects braking or steering |6.1.1 |c| |ii|| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Decelerometer brake test Neither brake control achieves an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Front Headlamp aim not tested |4.1.2 |b|| | 1 |
| Front Headlamp not working on dipped beam poss |4.1.1 |a| |ii|| | 1 |
| Rear All position lamps not working |4.2.1 |a|| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake pedal insecure (1.1.2 (e) (i)) | 1 |
| Front Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 1 |
| Offside Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Parking brake is not capable of being maintained in operation by direct mechanical action only |3.1.2| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Position lamp switch insecure |1.1.4b| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Front Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Offside Front Upper Brake component insecure brake master cylinder insecure on handlebar |1.1.21 |c|| | 1 |
| Offside Front Position lamp switch insecure |4.2.2 |b|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak ns fork leg leaking excessively and contaminating brake caliper |5.3.2 |b|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Offside Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride n/s/f brake disc |6.2.1h| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Brake lever attachment screws loose |3.1.2b| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Fuel system component insecure tank loose |7.2.1b| | 1 |
| Footrest insecure gear change loose |6.2.1a| | 1 |
| Rear Footrest insecure split pins missing, replaced by garage (6.2.12 (a)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Centre Passenger`s seat insecure |6.2.A.1| | 1 |
| Rear Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Riders seat insecure No catch fitted |6.2.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Roller brake test indicates a binding brake Will require caliper strip and rebuild very soon. |3.3.A1a| | 1 |
| Front Roller brake test indicates a binding brake Will require caliper strip and rebuild very soon. |3.3.A1a| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Brake pipe excessively corroded | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Offside 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 caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Brake back plate|s| insecure |3.2.A1j| | 1 |
| Front Front suspension fouling which affects the movement of the front suspension. mudguard fouling on radiator when suspension compressed. |2.3.6a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Offside Rear fog lamp adversely affected by the operation of another lamp |1.3.2f| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition |7.1.4| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Rear Lower Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Motorcycle structure has excessive corrosion which adversely affects braking or steering rear brake lever pivot (6.1.1 (c) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |