| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 81 |
| Registration plate lamp issues | 28 |
| Registration plate issues | 19 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 14 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 14 |
| Drive chain excessively loose |6.2.1d| | 13 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 9 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Front Brake excessively binding (1.2.1 (f)) | 8 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Headlamp aim beam image kick up to the offside |1.6| | 7 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Drive chain worn to excess |6.2.1e| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 6 |
| Drive chain excessively tight |6.2.1d| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 6 |
| Horn not working |1.7.3a| | 5 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Nearside Front Direction indicators not working |1.5.1c| | 4 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 4 |
| Offside Front Direction indicator not working |1.5.1c| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 4 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 4 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Nearside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Offside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Horn not working (7.7 (a)) | 3 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Front Horn not working |1.7.3a| | 3 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Exhaust has part of the system missing |7.1.1a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 2 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 2 |
| Offside Indicator tell tale not functioning |1.5.2| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Headlamp at least one does not illuminate on dipped beam (1.2.2a(i)) | 2 |
| Front Roller brake test indicates a binding brake (3.3.A1a) | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on (1.1.3a) | 2 |
| Rear Drive chain worn to excess |6.2.1e| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 2 |