| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 17 |
| Rear reflector missing (4.8.2 (a) (ii)) | 9 |
| Registration plate issues | 7 |
| Front Position lamp not working (4.2.1 (a)) | 4 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Front Position lamp not working |4.2.1 |a|| | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Offside Rear Footrest missing |6.2.12 |a|| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Rear All position lamps not working (4.2.1 (a)) | 2 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear shock absorber has inadequate damping effect. Both |2.4.A.3b| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Suspension component has excessive wear or free play |5.3.3 |d|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Stop lamp not working from rear control (4.3.1 (a) (ii)) | 1 |
| Rear Footrest missing both passenger footpegs missing (6.2.12 (a)) | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Nearside Front Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Offside Front Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Suspension component pin or bush excessively worn Swingarm bearing |5.3.4 |a| |i|| | 1 |
| Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Rear Suspension attachment bracket/mounting insecure REAR SWINGING ARM MOUNTS WORN/LOOSE
EXCESSIVE MOVEMENT |5.3.3 |a| |i|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Position lamp not working intermitant (4.2.1 (a)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp goes out when brakes applied (4.2.3 (b)) | 1 |
| Registration plate lamp issues | 1 |
| Rear Motorcycle structure is so deformed it is likely to adversely affect braking or steering wheel fouling on exhaust (6.1.1 (a) (ii)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Nearside Rear Direction indicator likely to become detached Lense slightly insecure from lamp unit. |4.4.1 |c| |ii|| | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Nearside Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Nearside Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Rear Brake lining|s| less than 1.0 mm thick |1.1.13 |a|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Suspension component pin or bush likely to become detached brake tourque arm pin missing (5.3.4 (a) (ii)) | 1 |
| Offside Front Upper Brake lever has insufficient reserve travel Front Brake No reserve Travel (1.1.2 (a)) | 1 |
| Central Rear Lower Shock absorber has negligible damping effect Rear Shocks Have Little Damping Effect (5.3.2 (b)) | 1 |
| Central Rear Lower Rear reflector missing Rear reflector Missing (4.8.2 (a) (ii)) | 1 |
| Nearside Rear Lower Drive chain excessively loose Chain is to loose (6.1.7 (c) (i)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls stop lamp not working from front brake control (4.3.2 (a) (iii)) | 1 |
| Handlebar grip insecure to handlebar both grips insecure to bars (2.2.1 (d) (ii)) | 1 |
| Offside Handlebar grip insecure to handlebar throttle grip and switch gear insecure to handle bar (2.2.1 (d) (ii)) | 1 |
| Headlamp insecure prs (4.1.1 (c)) | 1 |
| Rear Rear reflector missing prs (4.8.2 (a) (ii)) | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Suspension component pin or bush excessively worn swingarm bushes/bearings |5.3.4 |a| |i|| | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Headlamp aim not tested not working |4.1.2 |b|| | 1 |
| Rear Stop lamp not working not working |4.3.1 |a| |ii|| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Rear Drive chain sprocket so loose it is likely to fail sprocket nuts loose (6.1.7 (c) (ii)) | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Rear reflector likely to become detached (4.8.1 (b) (ii)) | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Rear Brake component insecure split pin missing (1.1.21 (c)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Offside Rear Suspension component mounting modified so the suspension is likely to fail other components |5.3.3 |c| |ii|| | 1 |
| Headlamp aim projected beam image obviously incorrect LED bulb fitted ,no beam pattern (4.1.2 (c)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Rear reflector missing Reflector fitted during test (4.8.2 (a) (ii)) | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Central Front Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Rear Suspension arm pin or bush excessively worn swing arm |5.3.4 |a| |i|| | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Direction indicator not working all (4.4.1 (a) (ii)) | 1 |