| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 43 |
| Registration plate lamp issues | 26 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 14 |
| Registration plate issues | 8 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 5 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Horn not working |1.7.3a| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Steering operation restricted in free movement from lock to lock STEERING BEARINGS ROUGH |2.1.4 |c|| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort has no pressure |3.3.A1c| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30% |1.2.2 |a| |i|| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Upper Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Wheel excessively distorted |5.2.2 |c| |i|| | 1 |
| Exhaust is leaking and excessively noisey Secondary air pipe |7.1.1b| | 1 |
| Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Rear Direction indicator obscured |1.5.1a| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Offside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Position lamp not working low beam |4.2.1 |a|| | 1 |
| Nearside Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Shock absorber has a serious fluid leak both shocks |5.3.2 |b|| | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement |6.1.8 |a| |i|| | 1 |
| Suspension component pin or bush excessively worn engine to chassis bushes |5.3.4 |a| |i|| | 1 |
| Offside Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Rear position lamp incorrect colour left |1.1.2b| | 1 |
| Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Offside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Offside Rear Suspension component fractured adjuster plate |5.3.3 |b| |ii|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure Fender, Sharp edges present |6.1.1 |b| |i|| | 1 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp |4.3.3 |b|| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front Direction indicator obscured |1.5.1a| | 1 |
| Exhaust silencer insecure |8.1.1 |b| |i|| | 1 |
| Central Rear position lamp incorrect colour |1.1.2b| | 1 |
| Stop lamp remains on when the brake is released both controls |1.3.1e| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front position lamp does not illuminate immediately when switched on dipped beam not working |1.1.3a| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Shock absorber has a serious fluid leak Front forks |5.3.2 |b|| | 1 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak both (5.3.2 (b)) | 1 |
| Headlamp aim not tested bulb blown (4.1.2 (b)) | 1 |
| Steering headbearing excessively stiff or notchy excessivley notchy (2.2.2 (f) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak nearside fork seal leaking (5.3.2 (b)) | 1 |
| Rear Brake lagging in operation rear brake lack of reserve travel when tested on rolling brake tester (1.2.1 (d)) | 1 |
| Rear Brake disc significantly and obviously worn rear disc below wear limit [less than 4.5mm] (1.1.14 (a) (i)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Rear Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Shock absorber has a serious fluid leak serious leak adversely affecting performance and steering under braking (5.3.2 (b)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Throttle operating incorrectly jamming when operated (6.2.7 (a) (i)) | 1 |
| Offside Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Front Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Central Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Headlamp not working on dipped beam light bulb replaced (4.1.1 (a) (ii)) | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Brake caliper leaking union were flexi-hose bolts to caliper (1.1.16 (b) (i)) | 1 |
| Front Stop lamp not working control (4.3.1 (a) (ii)) | 1 |
| Rear Position lamp switch does not illuminate all position lamps with a single operation (4.2.2 (a)) | 1 |
| Nearside Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Central Front Upper Headlamp aim not tested headlamp aim not tested as bike would not run for long enough. (4.1.2 (b)) | 1 |
| Rear brake binding | 1 |
| Central Rear Lower Brake grabbing severely rear brake grabbing and then locking (1.2.1 (c)) | 1 |
| Rear Brake grabbing severely dry lever pivot (1.2.1 (c)) | 1 |
| Brake cable insecure (1.1.15 (c)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Offside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp switch with a delay in operation rear brake lever operation (4.3.2 (a) (ii)) | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Offside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Offside Rear Stop lamp with a multiple light source more than 1/2 not functioning (4.3.1 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Nearside Front Direction indicator lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Shock absorber has a serious fluid leak Both forks (5.3.2 (b)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Front brake switch faulty (4.3.2 (a) (iii)) | 1 |
| Rear Shock absorber has a serious fluid leak Both shocks (5.3.2 (b)) | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Brake hose excessively twisted (1.1.12 (b) (ii)) | 1 |
| Rear Brake disc significantly and obviously worn Bolt missing (1.1.14 (a) (i)) | 1 |
| Offside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Steering operation impeded by a fairing Lock stops not connecting correctly (2.1.4 (e)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Stop lamp not working wiring reconnected (4.3.1 (a) (ii)) | 1 |