| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 17 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Rear Position lamp not working |4.2.1 |a|| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Horn not working |1.7.3a| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Registration plate lamp issues | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 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 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Nearside Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Handlebar fractured |2.1.1b| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Rear Brake hose which buldges |3.2.B4| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Front suspension assembly component missing |2.3.1| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear brake binding | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Rear Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Rear Brake pedal has insufficient reserve travel brake spongy,lever hits exhaust. |1.1.2 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. swinging arm |2.4.A.2d| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Lower Brake hose leaking fluid |3.2.B4| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Horn not working |1.6.2a| | 1 |
| Rear fog lamp tell tale not working |1.3.1b| | 1 |
| Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 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 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Front position lamp missing |1.1.1a| | 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 Front All position lamps not working |1.1.A.3b| | 1 |
| Nearside Rear All position lamps not working |1.1.A.3b| | 1 |
| Brake hose has insufficient room to move | 1 |
| Offside Front Footrest missing |9.6.1| | 1 |
| Nearside Rear All position lamps adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Offside Rear All position lamps adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |