| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 17 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 14 |
| Registration plate issues | 12 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 8 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 8 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 4 |
| Horn not working |1.7.3a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| 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| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Rear Brake pedal mounting insecure |3.1.2a| | 1 |
| Rear Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear wheel has a missing wheel nut|s| |4.2.3a| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock cables? |2.1.4 |a|| | 1 |
| Rear reflector missing |4.8.2 |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 |
| Throttle operating incorrectly accelerates when on left lock |6.2.7 |a| |i|| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Rear Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Nearside Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Rear suspension has a fracture of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Nearside Front Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Offside Front Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Nearside Front Shock absorber insecurely attached lower fixing (5.3.2 (a) (i)) | 1 |
| Offside Front Shock absorber insecurely attached lower fixing (5.3.2 (a) (i)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Offside Front Front suspension assembly component cracked |2.3.1| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Brake hose excessively twisted (1.1.12 (b) (ii)) | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front suspension assembly component loose |2.3.1| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake cable badly frayed |3.2.A1b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Wheel fractured significantly reducing the original strength |4.2.1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Steering damper insecure |2.1.4 |d| |i|| | 1 |
| Upper Throttle operating incorrectly |6.2.1f| | 1 |
| Upper Headlamp aim not tested |1.6| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Headlamp switch faulty |1.2.4| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |