| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 110 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 50 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 35 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 28 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 28 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 28 |
| Offside Front Footrest insecure |6.2.1a| | 21 |
| Drive chain excessively loose |6.2.1d| | 20 |
| Nearside Front Footrest insecure |6.2.1a| | 18 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 17 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 15 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Registration plate issues | 10 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 10 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 10 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 10 |
| Front wheel bearings have excessive free play |2.3.5b| | 9 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 9 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 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| | 8 |
| Rear Brake disc|s| cracked |3.2.A1g| | 8 |
| Horn not working |1.7.3a| | 8 |
| Nearside Footrest insecure |6.2.1a| | 8 |
| Rear Brake excessively binding (1.2.1 (f)) | 8 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 7 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 7 |
| Drive chain worn to excess |6.2.1e| | 7 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 7 |
| Front wheel bearings are excessively rough |2.3.5b| | 6 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 6 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 6 |
| Offside Footrest insecure |6.2.1a| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 5 |
| Drive chain excessively tight |6.2.1d| | 5 |
| Nearside Front Direction indicator missing |1.5.1a| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Nearside Front Direction indicator not working |1.5.1c| | 5 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 5 |
| Offside Front Direction indicator not working |1.5.1c| | 5 |
| Nearside Front Direction indicators not working |1.5.1c| | 5 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 4 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 4 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 4 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Fuel system component leaking |7.2.1a| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Horn not working (7.7 (a)) | 4 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| An item not tested |Manual| | 3 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 3 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Nearside Front Direction indicator insecure |1.5.3b| | 2 |
| Offside Front Direction indicator missing |1.5.1a| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 2 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Drive chain worn to excess |6.2.1e| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Nearside Front Footrest insecure |6.2.12 |a|| | 2 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Offside Front Footrest insecure |6.2.12 |a|| | 2 |
| Fuel hose leaking |7.2.1a| | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |