| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 86 |
| Registration plate issues | 25 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Offside Front Footrest insecure |6.2.1a| | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Rear Wheel spoke excessively loose |4.2.1b| | 6 |
| 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 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Front Position lamp not working (4.2.1 (a)) | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Wheel spoke excessively loose |4.2.1b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Rear Front mudguard insecure |2.3.7| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Steering lock stop ineffective |2.1.3| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Central Rear Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Brake back plate|s| insecure |3.2.A1j| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| All direction indicators adversely affected by the operation of another lamp |4.4.3 |b|| | 1 |
| Offside Front Footrest insecure |6.2.12 |a|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Offside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Rear Brake grabbing severely |1.2.1 |c|| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Wheel spoke excessively loose spokes very loose |5.2.2 |d|| | 1 |
| Rear Wheel damaged or distorted to the extent that control of the motorcycle is likely to be adversely affected |5.2.2 |c| |ii|| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Direction indicators not working front and rear |1.5.1c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear Wheel spoke cracked. |4.2.1b| | 1 |
| Centre Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Rear Brake locking device missing Front fixing of rear brake anchor, securing pin missing |3.2.A1e| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Stop lamp not working rear switch |4.3.1 |a| |ii|| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Stop lamp does not illuminate immediately a brake applies either brake |1.3.1a| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Rear Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Offside Rear Brake locking device missing |3.2.A1e| | 1 |
| Front Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Stop lamp not working both |4.3.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Headlamp reflector missing |4.1.1 |b| |ii|| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 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 |
| Stop lamp does not illuminate immediately a brake applies front switch |1.3.1a| | 1 |
| Stop lamp remains on when the brake is released rear swtch |1.3.1e| | 1 |
| An item not tested |Manual| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Rear Brake back plate|s| insecure |3.2.A1j| | 1 |
| Nearside 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 |
| Offside 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 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (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 |
| Nearside Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Offside Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Rear Stop lamp not working rear brake (4.3.1 (a) (ii)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Wheel spoke excessively loose X1 Broken |4.2.1b| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Offside Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear reflector likely to become detached |4.8.1 |b| |ii|| | 1 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Brake pivot has restricted free movement rear brake torque arm securing nut loose (1.1.15 (e)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Rear Lower Brake reaction bracket securing bolt|s| missing split pin fitted. |3.2.A1j| | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Sidecar wheel alignment has excessive toe-in |5.3.1b| | 1 |