| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 22 |
| Headlamp aim beam image kick up to the offside |1.6| | 15 |
| Drive chain excessively loose |6.2.1d| | 12 |
| Registration plate issues | 11 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Horn not working |1.7.3a| | 6 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Offside Front Footrest insecure |6.2.1a| | 5 |
| 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 |
| Registration plate lamp issues | 3 |
| Rear Drive chain excessively loose |6.2.1d| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Centre Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Brake performance not tested due to front brake bind (1.2.1 (g)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle sticking (6.2.7 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel Also brake fluid level low (1.1.2 (a)) | 1 |
| All direction indicators incorrect colour All indicators showing white (4.4.3 (a)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Centre Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| 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 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Wheel alignment incorrect which adversely affects the steering forks twisted in yokes |2.5.1| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Front Headlamp switch insecure |1.2.4| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Horn missing |1.7.1| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Brake lever mounting cracked |3.1.2c| | 1 |
| Nearside Front Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Brake locking device missing |3.2.A1e| | 1 |
| Offside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Front Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Rear Footrest insecure (6.2.12 (a)) | 1 |
| Nearside Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Nearside 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 |
| Offside 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 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Front Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Front Brake master cylinder severely damaged |3.2.B1b| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose bolt about to fall off |3.2.A1j| | 1 |
| Nearside Footrest insecure riders footrest securing circlip missing |6.2.1a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Horn not working |1.7.3a| | 1 |
| Nearside Front Steering control fouling between components which interferes with the free movement of the steering wiring harness fouling steering yoke |2.1.2a| | 1 |
| Nearside Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Offside Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Rear Horn not working |1.7.3a| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Horn replaced by a gong |1.7.3b| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock |2.1.4 |a|| | 1 |
| Rear Exhaust system insecure |6.1.2 |a|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Direction indicators not working FR/N/S |1.5.1c| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Rear Direction indicator deteriorated and function impaired lense holed |1.5.3a| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |