| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 22 |
| Registration plate issues | 14 |
| Rear reflector on motorcycle missing |1.4.1| | 10 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Horn not working |1.7.3a| | 3 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Direction indicator missing |1.5.1a| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Seat insecure |6.2.1a| | 2 |
| 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)) | 2 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| 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| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Nearside Direction indicators not working |1.5.1c| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| 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|| | 2 |
| 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| | 2 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Horn missing |1.7.1| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Suspension component mounting has an unsafe modification rear mudgard fouling drive belt guard /shocks too short (5.3.3 (c) (i)) | 1 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Stop lamp not working Not working from front break lever (4.3.1 (a) (ii)) | 1 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Central Front Upper Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Rear Lower Brake hose fouling |3.2.B3b| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Drive belt sprocket worn to excess bolts loose |6.2.1e| | 1 |
| Rear Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Drive belt excessively loose. |6.2.1d| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Rear Direction indicator missing Broken (4.4.1 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Centre Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Brake pipe excessively corroded | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake component leaking fluid |3.2.B4| | 1 |
| Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Drive belt worn to excess Drive belt shredding |6.1.7 |c| |i|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen Beam kick up on the wrong side |4.1.2 |a|| | 1 |
| Rear Wheel fixing missing |single fixing| Safety clip missing from attachment bolt |5.2.1 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Wheel spoke cracked (5.2.2 (d)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride 1 Pad pin missing. |6.2.1h| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded Caliper bolts hitting disc. |3.2.A1h| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Registration plate lamp issues | 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 |