| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 62 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 20 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 20 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 18 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 16 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 13 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 11 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 11 |
| Horn not working |1.7.3a| | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Registration plate issues | 6 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Offside Front Footrest insecure |6.2.1a| | 5 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Nearside Front Footrest insecure |6.2.1a| | 4 |
| Rear Drive chain excessively loose |6.2.1d| | 4 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Rear Brake excessively binding (1.2.1 (f)) | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Rear Brake disc|s| cracked |3.2.A1g| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Front Horn not working |1.7.3a| | 3 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 2 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| An item not tested |Manual| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Drive chain fouling another component |6.2.1d| | 2 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Brake pipe union leaking fluid |3.2.B4| | 2 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Registration plate lamp issues | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |