| Most common failures | No# failures |
|---|
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 52 |
| Headlamp aim out of alignment | 35 |
| Front wheel bearings are excessively rough |2.3.5b| | 22 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 21 |
| Registration plate issues | 18 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 18 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 13 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 13 |
| Front Brake disc|s| cracked |3.2.A1g| | 11 |
| Front wheel bearings have excessive free play |2.3.5b| | 10 |
| Rear Brake excessively binding (1.2.1 (f)) | 10 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 9 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 8 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 6 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Horn not working |1.7.3a| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 4 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 4 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 4 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 3 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Rear wheel insecure |4.2.3b| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Fuel hose leaking |7.2.1a| | 2 |
| Roller brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Brake excessively binding |1.2.1 |f|| | 2 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Centre Rear Lower Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Offside Front Upper Throttle operating incorrectly |6.2.1f| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| An item not tested |Manual| | 2 |
| Exhaust mounting missing |7.1.1c| | 2 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Brake disc contaminated (1.1.14 (b)) | 2 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Offside Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Brake hose excessively deteriorated | 2 |