| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 72 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 40 |
| Horn not working |1.7.3a| | 33 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 29 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 10 |
| Registration plate issues | 10 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 9 |
| Throttle operating incorrectly |6.2.1f| | 9 |
| Drive chain excessively loose |6.2.1d| | 9 |
| Front wheel bearings have excessive free play |2.3.5b| | 8 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 7 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 7 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 7 |
| Offside Headlamp aim beam image kick up to the offside |1.6| | 7 |
| Headlamp aim beam image kick up to the offside |1.6| | 7 |
| Front Brake excessively binding (1.2.1 (f)) | 7 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 6 |
| Steering headbearing has excessive free play |2.2.2| | 6 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 5 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Rear Brake disc|s| cracked |3.2.A1g| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 5 |
| Drive chain excessively tight |6.2.1d| | 5 |
| Rear Brake excessively binding (1.2.1 (f)) | 5 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Rear Brake excessively binding |1.2.1 |f|| | 4 |
| Horn not working |7.7 |a| |ii|| | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Brake disc|s| cracked |3.2.A1g| | 4 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Horn not working (7.7 (a)) | 4 |
| Offside Rear Footrest missing |6.2.1a| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Front Horn not working |1.7.3a| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Front Roller brake test indicates a binding brake (3.3.A1a) | 3 |
| Rear Brake pedal insecure (1.1.2 (e) (i)) | 3 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 3 |
| Headlamp aim beam image kick up to the offside (1.6) | 3 |
| Rear Footrest missing |6.2.1a| | 2 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Offside Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Registration plate lamp issues | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear position lamp insecure |1.1.1c| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Offside Steering lock stop ineffective |2.1.3| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Horn not working (1.7.3a) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 2 |