| Most common failures | No# failures |
|---|
| Front wheel bearings are excessively rough |2.3.5b| | 23 |
| Headlamp aim out of alignment | 22 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 22 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 21 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 18 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 17 |
| Registration plate issues | 14 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 12 |
| Front wheel bearings have excessive free play |2.3.5b| | 12 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 9 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Front Brake disc|s| cracked |3.2.A1g| | 5 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 5 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 5 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Rear Brake excessively binding (1.2.1 (f)) | 4 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Horn not working |1.7.3a| | 4 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 3 |
| 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| | 3 |
| Centre Front Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Offside Rear Exhaust excessively deteriorated |7.1.1a| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Brake excessively binding |1.2.1 |f|| | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |