| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 18 |
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Registration plate issues | 3 |
| Rear reflector on motorcycle obscured |1.4.1| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Offside Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Stop lamp not working with front brake control (4.3.1 (a) (ii)) | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Stop lamp not working front brake switch failed. (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Valve stem seriously damaged REAR |5.2.3 |j|| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies front |1.3.1a| | 1 |
| Roller brake test indicates a sticking brake rear |3.3.A1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies FRONT |1.3.1a| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Upper Stop lamp switch with a delay in operation SWITCH NOT WORKING |4.3.2 |a| |ii|| | 1 |
| Offside Rear Motorcycle structure joining/attachment plate or fastening insecure TOP BOX BOLT MISSING |6.1.1 |b| |i|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Front Stop lamp not working Brake lever |4.3.1 |a| |ii|| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Nearside Rear Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Outer Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Stop lamp does not emit a steady light not working |1.3.1b| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake cable has restricted free movement (1.1.15 (e)) | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Lower An item not tested |Manual| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Rear Direction indicator not working (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 |
| Central Rear Lower Stop lamp does not illuminate immediately a brake applies REAR BRAKE LIGHT SWITCH MISSING DOES NOT OPERATE BRAKE LIGHT ON THE REAR LEVER |1.3.1a| | 1 |
| Offside Rear Lower Exhaust is leaking and excessively noisey EXHAUST HAS A MASSIVE HOLE IN THE REAR SECTION AND IS HEAVILY CORRODED |7.1.1b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Brake lever pivot excessively tight |1.1.1 |a|| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Horn not working |1.7.3a| | 1 |