| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 48 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 20 |
| Registration plate issues | 17 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 12 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Horn not working |1.7.3a| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Throttle operating incorrectly |6.2.1f| | 6 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Offside Rear Direction indicator not working |1.5.1c| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Fuel system component leaking |7.2.1a| | 2 |
| Offside Fuel system component leaking carb leaking fuel |7.2.1a| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Fuel system component leaking |7.2.1a| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Brake linkage has abnormal movement of levers indicating excessive wear or maladjustment under load rear pedal can flick underneath causing it to be unable to use (1.1.15 (f)) | 2 |
| Offside Fuel pipe leaking |7.2.1a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Upper Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Upper Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Throttle operating incorrectly throttle sticks slow to return |6.2.1f| | 1 |
| Nearside Footrest insecure loose at mounting point |6.2.1a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake pedal has inadequate reserve travel rear brake has no reserve travel and fouls exhaust |3.1.3b| | 1 |
| Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Front Horn sounds harsh or grating |1.7.3c| | 1 |
| Front Brake lever is inoperative |3.1.3c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Stop lamp does not illuminate immediately a brake applies off footbrake |1.3.1a| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Lower Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Centre Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Rear Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Front suspension assembly component loose |2.3.1| | 1 |
| Nearside Fuel pipe leaking |7.2.1a| | 1 |
| Nearside Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| An item not tested |Manual| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Brake pipe excessively chafed |3.2.B2a| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Brake hose excessively deteriorated | 1 |
| Brake hose is likely to be fouled or trapped by moving parts loose |3.2.B2c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Nearside Fuel system component leaking fuel pipe clip missing |7.2.1a| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Outer Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Brake pipe excessively corroded | 1 |
| Nearside Fuel system component leaking |6.1.3 |b| |i|| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 1 |
| Rear wheel has a loose wheel stud|s| |4.2.3a| | 1 |
| Stop lamp not working not working when back brake is applied |4.3.1 |a| |ii|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Lower Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Upper Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Offside Front Upper Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front Lower Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Rear suspension bush excessively deteriorated lower shock absorber |2.4.A2a|i|| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 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 Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Indicator switch defective |1.5.4| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Gradient brake test indicates a sticking brake |3.3.D1c| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Fuel system component insecure |7.2.1b| | 1 |
| Offside Fuel system component insecure |7.2.1b| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Offside Fuel hose leaking |7.2.1a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front Direction indicator obscured |1.5.1a| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Front Brake pipe likely to become detached or damaged (1.1.11 (d) (ii)) | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Position lamp not working rear light not working on main/high beam (4.2.1 (a)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle return inoperative permitting continual revving of engine (6.2.7 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear reflector likely to become detached (4.8.1 (b) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |