| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 37 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 19 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 19 |
| Rear reflector on motorcycle missing |1.4.1| | 16 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 16 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 16 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 14 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 13 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 13 |
| Steering headbearing has excessive free play |2.2.2| | 11 |
| Fuel cap sealing washer missing |7.2.2c| | 9 |
| Indicator tell tale not functioning |1.5.2| | 9 |
| Registration plate issues | 9 |
| Horn not working |1.7.3a| | 9 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 9 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 7 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 6 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear Brake lever insecure |3.1.2a| | 5 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 4 |
| Front suspension has inadequate damping effect. |2.3.6c| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Steering headbearing has excessive free play |2.2.2| | 4 |
| Headlamp insecure |1.2.3b| | 4 |
| Riders seat insecure |6.2.1a| | 4 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 4 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Front mudguard insecure |2.3.7| | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Position lamp switch insecure |1.1.4b| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Horn is not a constant note |1.7.3c| | 2 |
| Rear Brake rod excessively damaged |3.2.A1c| | 2 |
| Indicator switch insecure |1.5.4| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 2 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front suspension assembly component excessively corroded. |2.3.1| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Registration plate lamp issues | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Brake performance not tested |3.3| | 2 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| An item not tested |Manual| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 2 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Front mudguard insecure |2.3.7| | 2 |
| Rear Rear wheel has a loose wheel nut|s| |4.2.3a| | 2 |
| Front Direction indicators not working |1.5.1c| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear Brake lever mounting insecure |3.1.2a| | 2 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Position lamp switch does not operate the front and rear position lamps |1.1.4c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| All direction indicators not working ALL indicators do not flash - staying on - (4.4.1 (a) (ii)) | 1 |
| Nearside Position lamp switch insecure |1.1.4b| | 1 |
| Offside Position lamp switch insecure |1.1.4b| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Brake lever insecure |3.1.2a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Centre Front Upper Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Upper Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear Lower Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear Lower Brake disc|s| insecure |3.2.A1g| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Position lamp switch faulty |1.1.4a| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Rear Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear suspension bush has excessive free play Main engine mounting |2.4.A2a|i|| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Rear Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Brake hose damaged | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 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 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Plate brake test No brake control achieves an efficiency of 30%. |3.3.B2a| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Rear Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Fuel hose leaking |7.2.1a| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Roller brake test indicates a severely juddering brake front brake disc severely distorted |3.3.A1b| | 1 |
| Fuel cap sealing washer missing seal missing off fuel filler cap |7.2.2c| | 1 |
| Rear reflector on motorcycle missing reflector missing off rear |1.4.1| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Steering linkage has excessive free play |2.2.2| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Nearside Front Brake hose fouling |3.2.B3b| | 1 |
| Offside Rear Brake hose fouling |3.2.B3b| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Nearside Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake disc contaminated fork oil (1.1.14 (b)) | 1 |
| Central Rear Upper Fuel cap ineffective cap seal missing (6.1.3 (b) (i)) | 1 |
| Handlebar grip insecure to handlebar Left hand grip loose to bar. PRS (2.2.1 (d) (ii)) | 1 |
| Nearside Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Nearside Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Front suspension assembly component loose |2.3.1| | 1 |
| Front Front suspension assembly component excessively bent |2.3.1| | 1 |
| Offside Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Front Brake lever is inoperative |3.1.3c| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake performance not tested |3.3| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Brake hose excessively deteriorated | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Fuel cap ineffective Seal on cap missing |6.1.3 |b| |i|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 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 |