| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 72 |
| Registration plate issues | 10 |
| Horn not working |1.7.3a| | 8 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp switch faulty |1.2.4| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Offside Rear Footrest insecure |6.2.1a| | 2 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Registration plate lamp issues | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Headlamp aim not tested |4.1.2 |b|| | 1 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Indicator switch inoperative |4.4.2 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Floor brake test indicates a binding brake Both |3.3.C2c| | 1 |
| Drive belt worn to excess |6.2.1e| | 1 |
| Nearside Front Lower Brake locking device missing |3.2.A1e| | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure exhaust can mounting loose |6.1.1 |b| |i|| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Inner Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicator missing |4.4.1 |a| |ii|| | 1 |
| Rear reflector on motorcycle missing replace |1.4.1| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded brake caliper seized on slider pins |3.2.A1h| | 1 |
| Front Drive chain sprocket worn to excess sprocket teeth badly hooked - likely to snap off soon |6.2.1e| | 1 |
| Front Roller brake test indicates a severely juddering brake 50% |3.3.A1b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired no pattern |1.2.3a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Floor brake test indicates a binding brake front brake too sticky |3.3.C2c| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Position lamp likely to become detached |4.2.1 |c| |ii|| | 1 |
| 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 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition non standard small silencer fitted with baffles fitted. |7.1.2| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Nearside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Offside Indicator switch defective |1.5.4| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Front shock absorber seal failed and leaking oil Both fork seals |2.3.3| | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Steering damper ineffective (2.1.4 (d) (i)) | 1 |
| Brake pipe excessively corroded | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Drive chain so loose it is likely to fail drive chain excessivley loose, (6.1.7 (c) (ii)) | 1 |