| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 9 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 7 |
| Headlamp aim out of alignment | 5 |
| Stop lamp remains on when the brakes are released | 4 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 4 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 4 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls rear lever (4.3.2 (a) (iii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Stop lamp not working front and rear application (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Rear Wheel hub excessively worn Rear sprocket carrier hub bearing has failed (5.2.1 (b) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Central Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Front Direction indicator lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Stop lamp not working does not illuminate when rear brake is applied (4.3.1 (a) (ii)) | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Drive chain sprocket worn to excess cush drive (6.1.7 (c) (i)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Clutch lever bent so it cannot be readily operated (6.2.7 (b)) | 1 |
| Wheel bearing play so excessive it is likely to break up rear wheel sprocket carrier bearing (5.1.3 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Central Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Steering operation restricted in free movement from lock to lock Ignition barrel is broken and positioning causes steering to foul (2.1.4 (c)) | 1 |
| Offside Front Upper Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Rear Footrest insecure bolt missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest insecure |6.2.12 |a|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Brake rod insecure split pin missing |1.1.15 |c|| | 1 |
| Offside Front Footrest insecure split pin missing |6.2.12 |a|| | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Drive chain sprocket so worn it is likely to fail advise change sprockets as well (6.1.7 (c) (ii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Registration plate issues | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Central Front Upper Motorcycle structure has a fracture which is likely to adversely affect braking or steering |6.1.1 |a| |ii|| | 1 |
| Front Forks excessively deformed |2.2.2 |d| |i|| | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling Front wheel axle bent and/or forks twisted in yokes (2.4 (a)) | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear reflector missing obscured by L plate (4.8.2 (a) (ii)) | 1 |
| Nearside Rear Lower Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Steering headbearing excessively stiff or notchy excessively notchy (2.2.2 (f) (i)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition baffle missing (8.1.1 (a)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Nearside Front Footrest insecure split pin missing. |6.2.12 |a|| | 1 |
| Front Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Rear Drive chain sprocket so loose it is likely to fail cush drive bushes |6.1.7 |c| |ii|| | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Stop lamp not working front brake (4.3.1 (a) (ii)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Front Brake hose excessively twisted (1.1.12 (b) (ii)) | 1 |
| Rear Drive chain sprocket so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Front Brake lever is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Offside Front Brake lever is so short that the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear reflector missing Obscured. (4.8.2 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp not working lever (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working pedal (4.3.1 (a) (ii)) | 1 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Stop lamp not working wiggled wires at foot brake switch and started working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Brake hose excessively twisted (1.1.12 (b) (ii)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Central Rear Lower Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Central Rear Upper Position lamp not working (4.2.1 (a)) | 1 |
| Central Rear Upper Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Central Rear Position lamp not working rear light not working (4.2.1 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |