| Most common failures | No# failures |
|---|
| Registration plate issues | 18 |
| Rear reflector on motorcycle missing |1.4.1| | 17 |
| Headlamp aim out of alignment | 10 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Horn not working |1.7.3a| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Horn missing |1.7.1| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Registration plate lamp issues | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Rear position lamp damaged and function impaired |1.1.1b| | 2 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear reflector on motorcycle missing (1.4.1) | 2 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride sprocket nuts and bolts loose |6.2.1h| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| 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 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front suspension assembly component missing |2.3.1| | 1 |
| Clutch lever positioned so it cannot be readily operated. lever mounting loose |6.2.1g| | 1 |
| Drive chain excessively loose and very dry |6.2.1d| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| An item not tested |Manual| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Offside Steering lock stop missing |2.1.3| | 1 |
| Rear Suspension arm pin or bush excessively worn swingingarm bushes |5.3.4 |a| |i|| | 1 |
| Rear Shock absorber insecurely attached lower bush worn |5.3.2 |a| |i|| | 1 |
| Rear Wheel spoke excessively loose |5.2.2 |d|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Nearside Rear Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Vehicle identification number not legible (0.2 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Fuel cap leaking (6.1.3 (b) (i)) | 1 |
| Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Fuel pipe insecure (6.1.3 (a) (i)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Suspension component pin or bush excessively worn Swing arm has excessive play (5.3.4 (a) (i)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect high and low beams work in reverse (4.1.2 (c)) | 1 |
| Stop lamp not working neither front or rear working (4.3.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Brake lever excessively worn (1.1.15 (b)) | 1 |
| Steering headbearing has excessive free play (2.2.2) | 1 |
| Nearside Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Front Steering headbearing has excessive free play (2.2.2) | 1 |
| Locking device(s) not correctly fitted which may make the motor bicycle dangerous to ride (6.2.1h) | 1 |
| Rear Rear wheel bearings have excessive free play (2.4.A.2c) | 1 |