| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 14 |
| Horn not working |1.7.3a| | 8 |
| Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Registration plate issues | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Fuel cap sealing washer torn |7.2.2c| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Brake hose excessively deteriorated | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Nearside rear brake grabbing severely |3.7.A.5b| | 1 |
| Offside rear brake grabbing severely |3.7.A.5b| | 1 |
| An item not tested |Manual| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Steering damper in such a condition that the steering action is impaired. |2.1.2d| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Position lamp switch faulty |1.1.4a| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Fuel system component insecure |7.2.1b| | 1 |
| Nearside Fuel system component insecure |7.2.1b| | 1 |
| Nearside Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Offside Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Sidecar attachment insecure |5.1.1b| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced swinging arm (6.1.1 (b) (ii)) | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 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 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Fuel tank leaking |7.2.1a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Brake lever pivots excessively worn |3.1.3a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Fuel pipe leaking |7.2.1a| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Front Throttle operating incorrectly |6.2.1f| | 1 |
| Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |