| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 14 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Rear mono-shock pivot seized |2.4.B.4| | 3 |
| Rear Rear mono-shock pivot seized |2.4.B.4| | 3 |
| Registration plate issues | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| An item not tested |Manual| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Throttle operating incorrectly Sticking open when turning right (6.2.7 (a) (i)) | 1 |
| Nearside Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Brake component inadequately mounted bracket not located correctly (1.1.21 (c)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Suspension component pin or bush excessively worn suspension linkage (2 bearings worn) (5.3.4 (a) (i)) | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Exhaust has a major leak of exhaust gases at mid joint- gasket deteriorated (6.1.2 (a)) | 1 |
| Rear Shock absorber has negligible damping effect not supporting bike weight (5.3.2 (b)) | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp showing white light to the rear |4.3.3 |a| |ii|| | 1 |
| Position lamp showing white light to the rear |4.2.3 |a| |ii|| | 1 |
| Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Wheel fixing loose |single fixing| excessive side movement on front wheel |5.2.1 |a| |ii|| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Chain guard insecure (6.1.7 (i)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Rear Suspension component has excessive wear or free play (5.3.3 (d)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Direction indicators not working all 4 on continuaus |1.5.1c| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Offside Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Stop lamp does not illuminate immediately a brake applies when brake lever is applied |1.3.1a| | 1 |
| Front position lamp adversely affected by the operation of another lamp All |1.1.3b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp all |1.1.3b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Registration plate lamp issues | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Direction indicator not working fit a new bulb (4.4.1 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn up and down play (5.3.4 (a) (i)) | 1 |
| Rear Lower Drive chain excessively loose |6.2.1d| | 1 |
| Outer Front Lower Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Centre Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Inner Rear Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Inner Rear Lower Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| All direction indicators adversely affected by the operation of another lamp wired wrong way as left is right and right is left (4.4.3 (b)) | 1 |