| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 39 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 27 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 26 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 25 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 17 |
| Registration plate lamp issues | 15 |
| Registration plate issues | 14 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 13 |
| Steering headbearing has excessive free play |2.2.2| | 10 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Stop lamp remains on when the brake is released |1.3.1e| | 6 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 6 |
| Stop lamp remains on when the brakes are released | 6 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Horn not working |1.7.3a| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 4 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 4 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 4 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Handlebar mounting clamp loose |2.1.1a| | 3 |
| Front suspension has inadequate damping effect. |2.3.6c| | 3 |
| Nearside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Stop lamp missing |1.3.3a| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Offside Rear Road spring worn so that its cross sectional area is reduced and seriously weakened (5.3.1 (b) (i)) | 2 |
| Offside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Front position lamp damaged and function impaired |1.1.1b| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Motorcycle structure excessively distorted nearside handle bar lever is bent |6.1.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Forks excessively deformed |2.2.2 |d| |i|| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Upper Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Stop lamp not working not working on front and back brake |4.3.1 |a| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Stop lamp not working both on front and rear brake |4.3.1 |a| |ii|| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Offside Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Nearside Headlamp switch faulty |1.2.4| | 1 |
| Stop lamp does not illuminate immediately a brake applies front |1.3.1a| | 1 |
| Brake lining|s| less than 1.5 mm thick rear |3.2.A1f|i|| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Nearside Front Stop lamp missing |1.3.3a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Shock absorber has a serious fluid leak o/s and n/s (5.3.2 (b)) | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Motorcycle structure cracked |6.1.1a| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake lever pivots excessively worn |3.1.3a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Stop lamp remains on when the brake is released FRONT OPERATED. |1.3.1e| | 1 |
| Stop lamp remains on when the brake is released REAR OPERATED. |1.3.1e| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Stop lamp does not illuminate immediately a brake applies FRONT OPERATED |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies REAR OPERATED |1.3.1a| | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Offside Rear Suspension rod damaged and seriously weakened bent shock absorber shaft (5.3.3 (b) (i)) | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Front Decelerometer brake test indicates a sticking brake |3.3.E1d| | 1 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 1 |
| Offside Front Position lamp not working |4.2.1 |a|| | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Steering headbearing has excessive wear or free play wheel raised (2.2.2 (f) (i)) | 1 |
| Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen kick up to the O/S of the road |4.1.2 |a|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Rear wheel insecure |4.2.3b| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Forks insecure (2.2.2 (d) (i)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Brake caliper cracked and braking performance affected Changed Caliper |1.1.16 |a| |ii|| | 1 |
| Nearside Front Lower Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Brake caliper inadequately mounted |1.1.16 |c| |i|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Steering lock stop maladjusted |2.1.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Nearside Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Rear shock absorber seal failed and leaking oil both |2.4.A.1c| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake component damaged and seriously reduced in strength |3.2.A1| | 1 |
| Stop lamp not working not working when front brake is applied |4.3.1 |a| |ii|| | 1 |
| Rear Brake lever has inadequate reserve travel brake lever |3.1.3b| | 1 |
| Fork yoke deformed |2.1.1b| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Brake lever excessively damaged |3.2.A1c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear Position lamp showing white light to the rear |4.2.3 |a| |ii|| | 1 |
| Rear Brake component inadequately mounted |1.1.21 |c|| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Nearside Rear Road spring worn so that its cross sectional area is reduced and seriously weakened (5.3.1 (b) (i)) | 1 |
| Nearside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Roller brake test indicates a binding brake (3.3.A1a) | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central All direction indicators not working all indicators not flashing rec (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Stop lamp remains on when the brake is released rear brake lever |1.3.1e| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies Rear light bulb blown. |1.3.1a| | 1 |
| Rear Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Roller brake test indicates a binding brake when spun backwards |3.3.A1a| | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure centre stand |6.1.1 |b| |i|| | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Offside Front Position lamp not working (4.2.1 (a)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Brake lever has inadequate reserve travel control |3.1.3b| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded brake operating arm seized on brake drum |3.2.A1h| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Nearside Front Lower Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |