| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 43 |
| Headlamp aim out of alignment | 21 |
| Registration plate issues | 20 |
| Rear reflector missing (4.8.2 (a) (ii)) | 13 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 7 |
| Drive chain excessively loose |6.2.1d| | 7 |
| Registration plate lamp issues | 7 |
| Rear reflector missing |4.8.2 |a| |ii|| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| 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| | 4 |
| Horn not working |7.7 |a| |ii|| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Horn not working |1.7.3a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| 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 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Brake pedal pivots excessively worn Siezed |3.1.3a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Nearside Rear Drive chain excessively tight |6.2.1d| | 1 |
| Rear Brake disc significantly and obviously worn excessive play in floating disc rivets (1.1.14 (a) (i)) | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Brake disc insecure (1.1.14 (a) (ii)) | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake component cracked and seriously reduced in strength |3.2.A1| | 1 |
| Clutch lever shortened so it cannot be readily operated. End Snapped |6.2.1g| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Brake locking device insecure |3.2.A1e| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Stop lamp not working Fix Front Brake Switch (4.3.1 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Centre Front Lower Brake disc|s| insecure |3.2.A1g| | 1 |
| Nearside Rear Lower Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Centre Rear Upper 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 |
| Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear 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 |
| Steering operation fouling on the fuel tank or bodywork on full lock cannot turn to full right lock due to throttle cables fouling on fuel tank (2.1.4 (b)) | 1 |
| Stop lamp does not illuminate immediately a brake applies on front and rear brake |1.3.1a| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Lower Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Stop lamp does not illuminate immediately a brake applies hand control |1.3.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Rear wheel bearings are excessively tight |2.4.A.2c| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Stop lamp showing white light to the rear |4.3.3 |a| |ii|| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear reflector on motorcycle missing new fitted |1.4.1| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Footrest missing Nearside and Offside |6.2.1a| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Central Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Stop lamp not working foot |4.3.1 |a| |ii|| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Footrest missing Rear seat cover fitted to convert to solo machine (6.2.12 (a)) | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. Re-glued handgrip to handlebar. |2.1.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Direction indicator obviously incorrectly positioned insufficient separation between rear indicators. (4.4.3 (a)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |