| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 17 |
| Registration plate issues | 14 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Registration plate lamp issues | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 2 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Horn missing |1.7.1| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front position lamp does not illuminate immediately when switched on dip beam |1.1.3a| | 1 |
| Service brake: efficiency below requirements |3.7.C.1a| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 1 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Offside Rear Radius arm has excessive play in a pin/bearing |2.4.G.2| | 1 |
| Parking brake efficiency below requirements |3.7.C.1b| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Front Brake pedal does not operate a brake fitted to each wheel |3.3.A.3| | 1 |
| Offside Rear Direction indicator insecure |1.4.A.2b| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Vehicle identification number has more than one different number displayed number plate bulb inop |6.3.5b| | 1 |
| Stop lamp does not illuminate immediately a brake applies when front brake lever applied |1.3.1a| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 1 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Wheel more than one fixing loose chain adjusters |5.2.1 |a| |ii|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Shock absorber has negligible damping effect seized, no damping effect |5.3.2 |b|| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear brake binding | 1 |
| Horn control missing |1.6.1| | 1 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Front Track rod end loose |2.2.B.1d| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Wheel damaged or distorted to the extent that control of the motorcycle is likely to be adversely affected (5.2.2 (c) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort disc damaged. (1.2.1 (e)) | 1 |
| Brake hose excessively deteriorated | 1 |
| Front Upper Brake hose leaking (1.1.12 (c)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Offside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Nearside Stop lamp(s) remains on when the brakes are released (4.3.2 (a) (iii)) | 1 |
| Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Stop lamp not working front brake light switch (4.3.1 (a) (ii)) | 1 |