| Most common failures | No# failures |
|---|
| Registration plate issues | 49 |
| Rear reflector on motorcycle missing |1.4.1| | 42 |
| Headlamp aim out of alignment | 29 |
| Registration plate lamp issues | 11 |
| Horn not working |1.7.3a| | 9 |
| Rear reflector missing |4.8.2 |a| |ii|| | 6 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 6 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Horn not working (7.7 (a)) | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front position lamp obscured more than 50% |1.1.1d| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn missing |1.7.1| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Brake lever pivot has excessive free play |1.1.1 |b|| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride engiane mount nissing |6.2.1h| | 1 |
| Exhaust has part of the system missing baffle |7.1.1a| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Stop lamp not working rear brake light switch not adjusted correctly (4.3.1 (a) (ii)) | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Brake performance not tested |3.3| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering To RHS |2.5.1| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute front & rear |1.5.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute front & rear |1.5.1c| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working rear pedal (4.3.1 (a) (ii)) | 1 |
| Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Brake hose excessively twisted |1.1.12 |b| |ii|| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |