| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Horn not working |1.7.3a| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Registration plate issues | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Brake component insecure |1.1.21 |c|| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp aim not tested No headlamp beam pattern. (4.1.2 (b)) | 1 |
| Rear Brake rod insecure Split pin missing (1.1.15 (c)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear reflector reflecting white to the rear |4.8.2 |a| |ii|| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Offside Rear Shock absorber likely to become detached Top nut loose. (5.3.2 (a) (ii)) | 1 |
| Nearside Rear Shock absorber likely to become detached Top nut missing. (5.3.2 (a) (ii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Chain guard insecure |6.1.7 |i|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Nearside Front Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Brake locking device missing split pin on brake pedal clevis pin |3.2.A1e| | 1 |