| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 47 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 30 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 29 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 19 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 16 |
| Registration plate lamp issues | 15 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 14 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Horn not working |1.7.3a| | 11 |
| Front Brake excessively binding |1.2.1 |f|| | 10 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Steering headbearing has excessive free play |2.2.2| | 9 |
| Front wheel bearings are excessively rough |2.3.5b| | 9 |
| Front Brake excessively binding (1.2.1 (f)) | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 8 |
| Registration plate issues | 8 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Fuel cap sealing washer missing |7.2.2c| | 6 |
| Indicator switch defective |1.5.4| | 6 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 6 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 6 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 6 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Horn not working |7.7 |a| |ii|| | 5 |
| Headlamp aim not tested (4.1.2 (b)) | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 4 |
| Horn control not functioning. |1.7.2b| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 3 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 3 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 3 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Rear wheel insecure |4.2.3b| | 2 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| Rear Decelerometer brake test indicates a binding brake |3.3.E1d| | 2 |
| Front suspension assembly component excessively bent |2.3.1| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 2 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake lever mounting insecure |3.1.2a| | 2 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 2 |
| Brake hose excessively deteriorated | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Horn sound not in accordance with requirements (7.7 (c)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 2 |