| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 2 |
| Horn not working (7.7 (a)) | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Sidecar wheel alignment has excessive toe-out |5.3.1a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Fuel system component insecure tank |7.2.1b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Front Steering linkage ball joint has excessive play (2.1.3 (b) (i)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Stop lamp not working lever or foot brake lever (4.3.1 (a) (ii)) | 1 |
| Brake pedal insecure foot brake nut loose (1.1.2 (e) (i)) | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Sidecar suspension has an insecure unit. |5.2.3a| | 1 |
| Steering damper in such a condition that the steering action is impaired. |2.1.2d| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Steering damper insecure |2.1.2d| | 1 |
| Centre Front Sidecar attachment insecure |5.1.A.1| | 1 |
| Outer Rear Sidecar attachment insecure |5.1.A.1| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Sidecar wheel bearings have excessive free play |5.2.3c| | 1 |
| Rear Lower Sidecar attachment insecure |5.1.A.1| | 1 |
| Nearside Sidecar rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Inner Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |