| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Registration plate issues | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Throttle operating incorrectly Sticking (6.2.7 (a) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases centre pipe (6.1.2 (a)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 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 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Registration plate lamp issues | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Fuel tank leaking tap leaking |7.2.1a| | 1 |
| Fuel system component leaking leaking fuel from carbs |7.2.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Rear Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Nearside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Front suspension assembly component missing |2.3.1| | 1 |