| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 64 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 23 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 19 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 16 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 13 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 11 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 11 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 10 |
| Drive chain excessively loose |6.2.1d| | 10 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Nearside Front Footrest insecure |6.2.1a| | 9 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Throttle operating incorrectly |6.2.1f| | 7 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear Brake disc|s| cracked |3.2.A1g| | 6 |
| Horn not working |1.7.3a| | 6 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Drive chain excessively tight |6.2.1d| | 5 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Offside Front Footrest insecure |6.2.1a| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Rear Brake excessively binding (1.2.1 (f)) | 5 |
| Registration plate issues | 5 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front suspension has inadequate damping effect. |2.3.6c| | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Offside Front Direction indicator missing |1.5.1a| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Nearside Footrest insecure |6.2.1a| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Offside Handlebar deformed |2.1.1b| | 2 |
| Headlamp insecure |4.1.1 |c|| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 2 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Front An item not tested |Manual| | 2 |
| Brake hose damaged | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Rear Footrest insecure |6.2.1a| | 2 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Offside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| An item not tested |Manual| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Offside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Drive chain worn to excess |6.2.1e| | 2 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear 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 |
| Front Brake disc|s| friction surface contaminated by oil or grease both front |3.2.A1k| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |