| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 20 |
| Rear reflector on motorcycle missing |1.4.1| | 18 |
| Registration plate issues | 14 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 10 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Horn not working |1.7.3a| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Offside Front Brake hose which buldges |3.2.B4| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear 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| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Steering headbearing excessively stiff or notchy Notchy |2.2.2 |f| |i|| | 1 |
| Shock absorber insecurely attached LOWER SECURING BOLT UNDONE |5.3.2 |a| |i|| | 1 |
| Rear Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced R/HAND FRONT FOOTREST HANGER INADEQUATELY MOUNTED TO FRAME ALSO MAKING REAR SUBFRAME MOUNTING DANGEROUS |6.1.1 |b| |ii|| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Nearside Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Front Upper Brake hose fouling |3.2.B3b| | 1 |
| Lower Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear Brake pedal cracked |3.1.2c| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Front Front wheel insecure |4.2.3b| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Front Motorcycle structure cracked |6.1.1a| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Position lamp not working |4.2.1 |a|| | 1 |
| Front Gradient brake test indicates a sticking brake |3.3.D1c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Front Headlamp missing |1.2.3a| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Offside Front Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Rear Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Rear Brake lever attachment screws loose |3.1.2b| | 1 |
| Rear Brake lever mounting insecure |3.1.2a| | 1 |
| Rear Brake lever cracked |3.1.2c| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Brake back plate|s| insecure |3.2.A1j| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Rear Rear suspension component loose |2.4.A.1a| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake lever excessively damaged |3.2.A1c| | 1 |
| Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Rear suspension component loose |2.4.A.1a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp insecure |1.3.3b| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |