| Most common failures | No# failures |
|---|
| Front Stop lamp not working (4.3.1 (a) (ii)) | 31 |
| Headlamp aim out of alignment | 27 |
| Registration plate issues | 17 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 11 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 10 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 10 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 9 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 7 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 6 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 6 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Horn sound not in accordance with requirements (7.7 (c)) | 5 |
| Riders seat insecure (6.2.5 (a) (ii)) | 5 |
| Rear Position lamp not working (4.2.1 (a)) | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Registration plate lamp issues | 4 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 3 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Front Brake grabbing severely |1.2.1 |c|| | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Nearside Rear Lower Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| All direction indicators incorrect colour (4.4.3 (a)) | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Horn not working (7.7 (a)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Horn sound not in accordance with requirements |7.7 |c|| | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Fuel cap ineffective Seal washer split (6.1.3 (b) (i)) | 1 |
| Rear Brake drum contaminated oil leak from gearbox (1.1.14 (b)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Stop lamp not working Stop lamp does not work when front brake applied. (4.3.1 (a) (ii)) | 1 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Stop lamp not working front brake switch loose connection (4.3.1 (a) (ii)) | 1 |
| Brake excessively binding Front brake binding, needs urgent attention. (1.2.1 (f)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Stop lamp not working via front brake |4.3.1 |a| |ii|| | 1 |
| Stop lamp not working not working off front brake lever |4.3.1 |a| |ii|| | 1 |
| Front Brake excessively binding front brake disc appears distorted |1.2.1 |f|| | 1 |
| Handlebar mounting so insecure that steering is adversely affected |2.2.1 |a| |ii|| | 1 |
| Rear Brake lining|s| less than 1.0 mm thick |1.1.13 |a|| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Front Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Front Shock absorber has a serious fluid leak Both front fork seals leaking excessively / stanchions corroded. |5.3.2 |b|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Brake disc significantly and obviously worn bent disc |1.1.14 |a| |i|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Rear Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Stop lamp not working off front leaver (4.3.1 (a) (ii)) | 1 |
| Nearside Front Lower Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Lower Brake excessively binding (1.2.1 (f)) | 1 |
| Stop lamp not working from front brake switch (4.3.1 (a) (ii)) | 1 |
| Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Offside Front Stop lamp switch with a delay in operation Not working (4.3.2 (a) (ii)) | 1 |
| Central Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Brake lever pivot has excessive free play (1.1.1 (b)) | 1 |
| Direction indicator not working Rear nearside (4.4.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Handlebar so insecure it is likely to become detached handle bars loose possible locking device loose. |2.2.1 |b| |ii|| | 1 |
| Offside Front Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Offside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working Rear brake lever switch inoperative. (4.3.1 (a) (ii)) | 1 |
| Central Rear Stop lamp switch with a delay in operation front brake switch faulty |4.3.2 |a| |ii|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp not working Front Brake |4.3.1 |a| |ii|| | 1 |
| Stop lamp not working of hand brake |4.3.1 |a| |ii|| | 1 |
| Handlebar so insecure it is likely to become detached |2.2.1 |b| |ii|| | 1 |
| Nearside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Stop lamp not working when front brake applied (4.3.1 (a) (ii)) | 1 |
| Offside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working from the front brake lever (4.3.1 (a) (ii)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Central Front Lower Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Front Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Fuel pipe leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Headlamp reflector missing (4.1.1 (b) (ii)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Headlamp aim projected beam image obviously incorrect LED Fitted (4.1.2 (c)) | 1 |
| Offside Stop lamp not working hand (4.3.1 (a) (ii)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam Dip beam is wired to come on when main beam is supposed to and vice versa. (4.1.3 (b)) | 1 |
| Suspension arm attachment bracket/mounting insecure Engine loose where its mounted in the frame. (5.3.3 (a) (i)) | 1 |
| Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp not working from front brake lever |4.3.1 |a| |ii|| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Front Stop lamp not working when front brake is applied |4.3.1 |a| |ii|| | 1 |
| Front Stop lamp not working REPLACED SWITCH DURING TEST (4.3.1 (a) (ii)) | 1 |
| Brake excessively binding Front (1.2.1 (f)) | 1 |
| Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Suspension arm attachment bracket/mounting insecure engine mount loose/broken (5.3.3 (a) (i)) | 1 |
| Front Stop lamp switch with a delay in operation Cleaned with electrical cleaner (4.3.2 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Brake performance not tested not tested due to insecure drivetrain. (1.2.1 (g)) | 1 |
| Rear Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Engine mounting/bracket excessively loose (6.1.8 (a) (ii)) | 1 |
| Engine mounting/bracket bracket excessively loose engine mounting bolt missing (6.1.8 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |