| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 23 |
| Registration plate issues | 12 |
| Rear reflector missing (4.8.2 (a) (ii)) | 8 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 8 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Horn sound not in accordance with requirements (7.7 (c)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Horn not working |1.7.3a| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| 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)) | 3 |
| All direction indicators not working (4.4.1 (a) (ii)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Service brake excessively fluctuating |1.2.1 |e|| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Fuel system component leaking |6.1.3 |b| |i|| | 2 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Front Steering lock stop missing |2.1.3| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Brake component defective due to a deliberate modification which significantly reduces the original strength |3.1.5| | 1 |
| Offside Headlamp switch insecure |1.2.4| | 1 |
| Nearside Indicator switch insecure |1.5.4| | 1 |
| Rear Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Brake reaction bracket insecure |3.2.A1j| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 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 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Suspension arm attachment bracket/mounting insecure swing arm |5.3.3 |a| |i|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Central Rear Upper Rear suspension bush has excessive free play in swingarm |2.4.A2a|i|| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Central Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Front wheel insecure |4.2.3b| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Wheel more than one fixing missing Spindle split pins missing |5.2.1 |a| |ii|| | 1 |
| Offside Rear Wheel more than one fixing missing Spindle split pin missing |5.2.1 |a| |ii|| | 1 |
| Rear Wheel fixing missing |single fixing| spindle split pin missing |5.2.1 |a| |ii|| | 1 |
| Rear Brake component insecure brake arm split pin missing |1.1.21 |c|| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Nearside Front Shock absorbers has a serious fluid leak | 1 |
| Offside Front Shock absorbers has a serious fluid leak | 1 |
| Steering pivot point has excessive play head bearings |2.2.B.1g| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Throttle operating incorrectly sticking on |6.2.1f| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front wheel spindle securing nut locking device missing Fork lower pinch bolt |2.3.5a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Horn control not readily accesible. |1.7.2a| | 1 |
| Front Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Front Service brake excessively binding |1.2.1 |f|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Position lamp not working When head lamp on full beam |4.2.1 |a|| | 1 |
| Central Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Rear Brake component inadequately mounted reaction arm has no locking pins (1.1.21 (c)) | 1 |
| Steering operation restricted in free movement from lock to lock trapped cable (2.1.4 (c)) | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Front Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected split pin missing (5.2.1 (c) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Wheel more than one fixing missing fork pinch bolts missing (5.2.1 (a) (ii)) | 1 |
| Front Wheel fixing missing (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Front Wheel fixing missing (multiple fixings) split pin missing (5.2.1 (a) (i)) | 1 |
| Rear Wheel fixing missing (multiple fixings) rear split pin missing (5.2.1 (a) (i)) | 1 |
| Front Brake lagging in operation (1.2.1 (d)) | 1 |
| Front Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected Split pin securing missing. (5.2.1 (c) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Brake cable insecure | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen Wired incorrectly. (4.1.2 (a)) | 1 |
| Brake cable insecure Lock nut missing from front brake cable. (1.1.15 (c)) | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp reflector seriously defective Beam scattered (4.1.1 (b) (ii)) | 1 |
| Rear Brake hose bulging under pressure (1.1.12 (d)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Headlamp light intensity severely reduced aim not tested (4.1.4 (a)) | 1 |
| Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Throttle operating incorrectly sticking (6.2.7 (a) (i)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Rear Brake pedal pivot excessively tight (1.1.1 (a)) | 1 |
| Stop lamp not working from rear brake (4.3.1 (a) (ii)) | 1 |
| Front Suspension component missing no fork brace between both fork legs. which will adversely effect handling of the motorcycle (5.3.3 (a) (ii)) | 1 |
| Rear Position lamp light intensity significantly reduced not positioned correctly so light can be seen (4.2.3 (a) (ii)) | 1 |
| Nearside Position lamp switch insecure (4.2.2 (b)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Wheel spindle locking device ineffective Locking device missing (5.2.1 (d)) | 1 |
| Offside Exhaust system insecure (6.1.2 (a)) | 1 |
| Suspension arm pin or bush excessively worn Rear Swinging arm (5.3.4 (a) (i)) | 1 |
| Nearside Shock absorber has a serious fluid leak Fork leg (5.3.2 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Front Shock absorber has negligible damping effect front forks have no damping effect. (5.3.2 (b)) | 1 |
| Offside Front Brake lever has insufficient reserve travel lever coming up against handlebar. (1.1.2 (a)) | 1 |
| Offside Rear Brake lever has insufficient reserve travel brake pedal has too much travel before operation. (1.1.2 (a)) | 1 |
| Rear 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 |
| Central Front Wheel fixing loose (single fixing) wheel spindle nut loose and securing pin not secure. (5.2.1 (a) (ii)) | 1 |
| Offside Front Footrest insecure foot rest at right side pushing down on rear brake pedal when weight on it. (6.2.12 (a)) | 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 |
| Suspension arm pin or bush excessively worn Rear trailing arm (5.3.4 (a) (i)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Shock absorber has an excessively worn bush rear top bush worn (5.3.2 (c)) | 1 |