| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 14 |
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Registration plate issues | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Brake pipe excessively corroded | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Horn not working |1.7.3a| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Nearside Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Offside Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Fuel cap sealing washer torn |7.2.2c| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Nearside Front Handlebar so insecure it is likely to become detached Clip on bar loose securing bolt re-tightened after test (2.2.1 (b) (ii)) | 1 |
| Nearside Front Handlebar retaining device loose clip on bolt (2.2.1 (b) (i)) | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies brake switch not fitted |1.3.1a| | 1 |
| Brake lever attachment screws loose |3.1.2b| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Horn missing |1.7.1| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| 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| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Front Suspension attachment bracket/mounting fractured fork leg cracked (5.3.3 (b) (ii)) | 1 |
| Nearside Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Nearside Front Brake hose excessively stretched (1.1.12 (b) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls adjusted switches now ok (4.3.2 (a) (iii)) | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Nearside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Brake hose excessively deteriorated | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Front Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Position lamp not working |4.2.1 |a|| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |