| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Horn not working |1.7.3a| | 4 |
| Offside Front Direction indicator insecure |1.5.3b| | 3 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Nearside Front Direction indicator insecure |1.5.3b| | 2 |
| Rear Brake excessively binding |1.2.1 |f|| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 2 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Shock absorber has a serious fluid leak both front forks leaking badly |5.3.2 |b|| | 1 |
| Rear Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Nearside Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear Rear mono-shock pivot seized |2.4.B.4| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Roller 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 |
| Offside Front Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Rear Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Drive chain sprocket excessively loose |6.1.7 |c| |i|| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Motorcycle structure is so deformed it is likely to adversely affect braking or steering wheels are not aligned front to rear poss adjustment to rear wheel adjustment |6.1.1 |a| |ii|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Suspension component ball joint excessively worn |5.3.4 |a| |i|| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Fuel tank leaking from tap |7.2.1a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Handlebar cracked |2.1.1b| | 1 |
| Registration plate issues | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |