| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 32 |
| Headlamp aim out of alignment | 26 |
| Registration plate issues | 20 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 8 |
| Registration plate lamp issues | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| 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| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Nearside Rear Direction indicator missing |1.5.1a| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Front Horn sound not in accordance with requirements harsh (7.7 (c)) | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Horn not working |1.7.3a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies FOOT CONTROL |1.3.1a| | 1 |
| Brake pedal has inadequate reserve travel FOOT CONTROL |3.1.3b| | 1 |
| Front wheel insecure Incorrect spacing |4.2.3b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Rear Brake fluid reservoir severely damaged |3.2.B1b| | 1 |
| Outer Rear Lower 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 wheel spindle securing nut locking device insecure (2.4.A.2b) | 1 |
| Rear reflector on motorcycle missing (1.4.1) | 1 |
| Brake pedal insecure (3.1.2a) | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear wheel rotation likely to be impeded ABS sensor rubbing on disc |6.2.1b| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Stop lamp not working front brake switch needed cleaning (4.3.1 (a) (ii)) | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear suspension component loose Spring |2.4.A.1a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Rear spindel nut cracked |6.2.1h| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Front Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Exhaust has part of the system missing |7.1.1a| | 1 |
| Offside Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Brake disc|s| insecure |3.2.A1g| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Throttle operating incorrectly sticking |6.2.1f| | 1 |
| Nearside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Rear reflector missing New rear reflector fitted at time of test. (4.8.2 (a) (ii)) | 1 |
| Rear Stop lamp switch with a delay in operation Adjusted. (4.3.2 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar Re fitted at time of test. (2.2.1 (d) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Brake pedal has insufficient reserve travel rear brake is spongy and has no reserve travel |1.1.2 |a|| | 1 |
| Fuel system component leaking |6.1.3 |b| |i|| | 1 |
| Position lamp not working full beam |4.2.1 |a|| | 1 |
| Nearside Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. |3.3.E1b| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Rear Upper Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Upper Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Rear Lower Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Rear Lower Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside 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 |
| Centre Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front Floor brake test indicates a binding brake (3.3.C2c) | 1 |
| Headlamp at least one does not illuminate on dipped beam (1.2.2a(i)) | 1 |