| Most common failures | No# failures |
|---|
| Registration plate issues | 94 |
| Headlamp aim out of alignment | 84 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 24 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 15 |
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 13 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 13 |
| Drive chain excessively loose |6.2.1d| | 13 |
| Horn not working |1.7.3a| | 12 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 12 |
| Front wheel bearings have excessive free play |2.3.5b| | 11 |
| Headlamp aim beam image kick up to the offside |1.6| | 11 |
| Front wheel bearings are excessively rough |2.3.5b| | 11 |
| Registration plate lamp issues | 10 |
| 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| | 10 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Offside Rear Footrest missing |6.2.1a| | 8 |
| Nearside Rear Footrest missing |6.2.1a| | 7 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 6 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 6 |
| Nearside Rear Direction indicators not working |1.5.1c| | 6 |
| Nearside Front Direction indicator not working |1.5.1c| | 6 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 5 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 5 |
| Rear Footrest missing |6.2.1a| | 5 |
| Nearside Front Direction indicators not working |1.5.1c| | 5 |
| Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Drive chain worn to excess |6.2.1e| | 5 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 4 |
| Direction indicators not working |1.5.1c| | 4 |
| Riders seat insecure |6.2.1a| | 4 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 3 |
| Headlamp incorrect colour |1.2.1| | 3 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Horn control defective |1.7.2a| | 3 |
| Rear Direction indicators not working |1.5.1c| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 3 |
| Horn not working (7.7 (a)) | 2 |
| Rear Direction indicator missing |1.5.1a| | 2 |
| Front Direction indicator not working |1.5.1c| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Direction indicators not working |1.5.1c| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Direction indicator missing |1.5.1a| | 2 |
| Offside Rear All direction indicators not working |4.4.1 |a| |ii|| | 2 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Nearside Rear Lower Drive chain excessively loose |6.2.1d| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Nearside Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Offside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Handlebar retaining device missing (2.2.1 (b) (i)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock speedo cable fitted incorrectly,interfering with steering (2.1.4 (a)) | 1 |
| Nearside Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear brake |1.3.1a| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Fuel pipe union leaking (6.1.3 (b) (i)) | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Upper Direction indicators not working |1.5.1c| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Brake linkage clevis joint excessively worn |3.2.A1d| | 1 |
| Front wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Nearside Rear Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Centre Rear Lower Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Front Handlebar cracked |2.1.1b| | 1 |
| Offside Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Handlebar fractured |2.1.1b| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear An item not tested |Manual| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear 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 |
| Headlamp aim projected beam image obviously incorrect Lens masked due to righthand kick up/EU lens (4.1.2 (c)) | 1 |
| Nearside Rear 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 |
| Offside Rear 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 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front position lamp does not illuminate immediately when switched on low |1.1.3a| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Nearside Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Steering damper ineffective |2.1.2d| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Rear reflector reflecting white to the rear |4.8.2 |a| |ii|| | 1 |
| Rear Direction indicator obviously incorrectly positioned Less than 180mm apart. (4.4.3 (a)) | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired |5.1.3 |a| |ii|| | 1 |
| Centre Front Upper Riders seat insecure |6.2.1a| | 1 |
| Centre Rear Lower Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Centre Rear Upper 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 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front Brake lever excessively damaged |3.2.A1c| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Throttle has a significant change in engine speed whilst moving the steering from lock to lock when steering on left hand lock |2.1.4| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars On both locks hands foul mirrors |2.1.2b| | 1 |
| Offside Outer Steering control fouling between components which interferes with the free movement of the steering Bar controls fouling right hand full lock,fairing brace to brake lever |2.1.2a| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. |3.3.E1b| | 1 |
| Nearside Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Offside Front Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Nearside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| An item not tested |Manual| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Roller brake test indicates excessive fluctuation of brake effort right hand disc bent |3.3.A1d| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on number plate light |1.1.3a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride right hand side and lower fairings |6.2.1h| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Offside Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp not working rear operated |4.3.1 |a| |ii|| | 1 |
| Rear Direction indicator obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Upper Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |