| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 33 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Registration plate issues | 8 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 6 |
| Horn not working |1.7.3a| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 6 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Front Steering headbearing has excessive free play |2.2.2| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Offside Rear Direction indicator not working |1.5.1c| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Brake locking device missing |3.2.A1e| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Offside Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Motorcycle structure cracked |6.1.1a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Horn not working repair |1.7.3a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Front Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Centre Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Centre Lower Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Lower Fuel hose leaking |7.2.1a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Nearside Front Headlamp switch faulty |1.2.4| | 1 |
| Offside Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Offside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Front Horn control not functioning. |1.7.2b| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Brake master cylinder severely corroded |3.2.B1b| | 1 |
| Offside Front An item not tested |Manual| | 1 |
| Front Brake cylinder severely corroded |3.2.B1b| | 1 |
| Brake cylinder severely corroded |3.2.B1b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Front Upper Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Outer Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 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 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Horn missing |1.7.1| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Front Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp bulb wired rong |1.2.2c| | 1 |
| Headlamp at least one does not illuminate on main beam tell tail on dash |1.2.2a|ii|| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Central Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Fuel system component insecure tank |7.2.1b| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle cable tightens on lock to lock and revs up (6.2.7 (a) (ii)) | 1 |
| Central Front Upper Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Central Front Upper Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Central Front Upper Brake fluid contaminated (1.8 (a)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Front Front mudguard insecure mudguard fork brace missing (2.3.7) | 1 |
| Brake lever insecure lock nut missing (3.1.2a) | 1 |
| Front Front wheel spindle securing nut locking device missing (2.3.3a) | 1 |
| Offside Rear Footrest insecure split pin missing (6.2.1a) | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Nearside Front Direction indicators not working (1.5.1c) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |