| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 73 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 24 |
| Registration plate issues | 23 |
| Registration plate lamp issues | 21 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 20 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 17 |
| Drive chain excessively loose |6.2.1d| | 17 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 16 |
| Horn not working |1.7.3a| | 13 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 13 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 10 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 9 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 8 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 6 |
| Drive chain worn to excess |6.2.1e| | 6 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Fuel system component leaking |7.2.1a| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 4 |
| Offside Rear Direction indicators not working |1.5.1c| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 3 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| All direction indicators not working (4.4.1 (a) (ii)) | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Horn sound not in accordance with requirements (7.7 (c)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear suspension component loose |2.4.A.1a| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Nearside Direction indicators not working |1.5.1c| | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear position lamp damaged and function impaired |1.1.1b| | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |