| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 11 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Drive chain worn to excess |6.2.1e| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 3 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Drive chain fouling another component |6.2.1d| | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Registration plate issues | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Chain guard insecure |6.2.1c| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Offside Rear Brake linkage excessively corroded |3.2.A1c| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Horn not working |1.7.3a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Offside Rear Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Nearside Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Rear Wheel bearing has excessive play sprocket carrier |5.1.3 |a| |i|| | 1 |
| Drive chain sprocket so loose it is likely to fail cush rubbers |6.1.7 |c| |ii|| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Exhaust has a major leak of exhaust gases corrosion to exhaust blowing in two locations (6.1.2 (a)) | 1 |
| Nearside Handlebar deformed to the extent that steering is affected handle bar loose (2.2.1 (c) (ii)) | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Brake cylinder insecurely mounted |3.2.B1a| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Drive chain horseshoe locking device incorrectly fitted Wrong Direction (6.1.7 (j) (i)) | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Drive chain excessively loose ADJUSTER NUTS LOOSE (6.1.7 (c) (i)) | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working front lever (4.3.1 (a) (ii)) | 1 |
| Rear Brake master cylinder insecure (1.1.10 (c)) | 1 |
| Registration plate lamp issues | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Wheel hub worn to the extent that wheel security is adversely affected |5.2.1 |b| |ii|| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease possibly come from nearside fork stantion |3.2.A1k| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Direction indicator not working R/H front |1.5.1c| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |