| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 31 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Horn not working |1.7.3a| | 9 |
| Registration plate issues | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Fuel system component leaking |7.2.1a| | 5 |
| Offside Front Brake pipe inadequately supported |3.2.B2b| | 4 |
| Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Fuel cap sealing washer torn |7.2.2c| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 3 |
| Nearside Front Brake pipe inadequately supported |3.2.B2b| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| 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| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Sidecar wheel bearings are excessively rough |5.2.3d| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Brake hose damaged | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Registration plate lamp issues | 2 |
| Offside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 2 |
| Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 2 |
| Brake pipe excessively corroded | 2 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Offside Fuel system component leaking |7.2.1a| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Offside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake component is excessively corroded |3.1.5| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Offside Front Brake pipe union leaking fluid |3.2.B4| | 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 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Inner Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Sidecar rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Sidecar rear position lamp insecure |1.1.1c| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Horn not working loose wire |1.7.3a| | 1 |
| Front Front wheel spindle loose |2.3.5a| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Direction indicators 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 |
| Front Brake pipe excessively chafed |3.2.B2a| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Indicator switch inoperative |4.4.2 |a| |ii|| | 1 |
| Front Upper Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Brake pipe excessively damaged |3.2.B2a| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Offside Rear Lower Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Brake pedal cracked |3.1.2c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Sidecar rear red reflector missing |1.4.1| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Brake pipe excessively chafed |3.2.B2a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Brake pedal attachment screws loose |3.1.2b| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake linkage has restricted free movement (1.1.15 (e)) | 1 |
| Handlebar restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Centre Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Nearside Fuel pipe leaking |7.2.1a| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Wheel spindle locking device ineffective (5.2.1 (d)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Direction indicators not in good working order |function impaired| |1.5.A1b| | 1 |
| Horn not a continuous or uniform sound |1.6.2e| | 1 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 1 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 1 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Nearside Front Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Front Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Nearside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Exhaust emits clearly visible black smoke during acceleration |7.4.A2| | 1 |
| Body or chassis has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Exhaust mounting missing bracket snapped |7.1.1c| | 1 |
| Nearside Exhaust has part of the system missing silencer clamp missing |7.1.1a| | 1 |
| Offside Exhaust has part of the system missing silencer clamp missing |7.1.1a| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Horn missing |1.7.1| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Handlebar so insecure it is likely to become detached |2.2.1 |b| |ii|| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Rear All position lamps not working |4.2.1 |a|| | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Direction indicator not working all |1.5.1c| | 1 |
| Offside Fuel pipe leaking |7.2.1a| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Offside Rear Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Exhaust mounting missing |7.1.1c| | 1 |
| Offside Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking rear subframe bolts loose |6.1.1c| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Throttle operating incorrectly very stiff, not returning |6.2.1f| | 1 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Offside Stop lamp not working |1.2.1b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Lower Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Nearside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |