| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Registration plate issues | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 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 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Suspension component pin or bush excessively worn swingarm bushes side to side play |5.3.4 |a| |i|| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Centre Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Horn not working |1.7.3a| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Steering lock stop maladjusted |2.1.3| | 1 |
| Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Brake pipe excessively chafed |3.2.B2a| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Brake hose damaged | 1 |
| Front Brake reaction bracket insecure |3.2.A1j| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear mono-shock pivot seized |2.4.B.4| | 1 |
| Nearside Front Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Rear Brake hose excessively twisted |3.2.B3a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Stop lamp not working on neither control (4.3.1 (a) (ii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Offside Front Lower Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |