| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 59 |
| Registration plate issues | 12 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 12 |
| Rear reflector missing (4.8.2 (a) (ii)) | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Rear reflector on motorcycle obscured |1.4.2b| | 7 |
| Registration plate lamp issues | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 6 |
| Headlamp insecure |1.2.3b| | 5 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Headlamp insecure (4.1.1 (c)) | 4 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Direction indicators not working |1.5.1c| | 2 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Nearside Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Central Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Offside Front Upper Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Lower Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Rear Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear reflector missing Covered by L Plate |4.8.2 |a| |ii|| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Brake lever insecure locking device missing |3.1.2a| | 1 |
| Headlamp insecure Adjuster screw missing. |1.2.3b| | 1 |
| Handlebar handgrip not secure to handlebars. L/H grip loose on bar. |2.1.1c| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front Headlamp insecure |4.1.1 |c|| | 1 |
| Fuel tank leaking filler neck broken |6.1.3 |b| |i|| | 1 |
| Steering headbearing excessively stiff or notchy notchy |2.2.2 |f| |i|| | 1 |
| Front Brake linkage has abnormal movement of levers indicating excessive wear or maladjustment bolt loos on lever |1.1.15 |f|| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Vehicle identification number not permanently displayed |6.3.5a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Rear Brake lever is inoperative rear brake lever comes back to handlebar when applied |3.1.3c| | 1 |
| Front Brake lever has inadequate reserve travel front brake fully adjusted has no reserve travel |3.1.3b| | 1 |
| Horn not working |1.7.3a| | 1 |
| Offside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Central Front Steering operation linkage fouling when handlebars turned from lock to lock |2.1.4 |a|| | 1 |
| Nearside Front Brake lever pivot has excessive free play |1.1.1 |b|| | 1 |
| Rear Brake lever has inadequate reserve travel rear brake |3.1.3b| | 1 |
| Nearside Brake lever has inadequate reserve travel rear brake |3.1.3b| | 1 |
| Offside Brake lever has inadequate reserve travel front brake |3.1.3b| | 1 |
| Front Shock absorber has negligible damping effect forks |5.3.2 |b|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Headlamp reflector seriously defective not bolted on to plastics |4.1.1 |b| |ii|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Handlebar so insecure it is likely to become detached Slight play in handlebars when moving lock to lock. |2.2.1 |b| |ii|| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Stop lamp not working lot of travel on lever (4.3.1 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear reflector missing obscured by l plate (4.8.2 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake drum significantly and obviously worn on maximum adjustment (1.1.14 (a) (i)) | 1 |
| Front Steering headbearing excessively stiff or notchy excessively notchy head bearings (2.2.2 (f) (i)) | 1 |
| Nearside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Front Upper Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Brake caliper inadequately mounted pad retaining pin clip missing (1.1.16 (c) (i)) | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear reflector likely to become detached (4.8.1 (b) (ii)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play A lot of play in steering/headrace bearings + notchy. (2.2.2 (f) (i)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (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 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Headlamp missing (4.1.1 (a) (ii)) | 1 |
| Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Valve stem seriously damaged valve stem perished and cracking (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged valve stem perished and cracking (5.2.3 (j)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Front Lower Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |