| Most common failures | No# failures |
|---|
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 26 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 19 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 16 |
| Headlamp aim out of alignment | 16 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 13 |
| Registration plate issues | 12 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Riders seat insecure |6.2.1a| | 5 |
| Headlamp aim not tested |1.6| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Headlamp insecure |1.2.3b| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Handlebar deformed |2.1.1b| | 2 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Handlebar mounting clamp loose |2.1.1a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Offside Steering lock stop ineffective |2.1.3| | 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 |
| Horn not working |1.7.3a| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Throttle operating incorrectly Throttle dose not return |6.2.1f| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Front Brake disc contaminated (1.1.14 (b)) | 2 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 2 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Stop lamp not working front brake light not working |4.3.1 |a| |ii|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Fuel cap ineffective incorrect cap |6.1.3 |b| |i|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Leg shield insecure and likely to impede the steering |2.1.2e| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired no image at all |1.2.3a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies control |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies control |1.3.1a| | 1 |
| Nearside Handlebar handgrip missing |2.1.1c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear Position lamp switch does not operate the front and rear position lamps |1.1.4c| | 1 |
| Front Position lamp switch does not operate the front and rear position lamps |1.1.4c| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Lower Headlamp aim not tested |4.1.2 |b|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure |6.1.1 |b| |i|| | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure both rear |6.1.1 |b| |i|| | 1 |
| Brake performance not tested |3.3| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| An item not tested |Manual| | 1 |
| Leg shield so located that it is likely to impede the steering |2.1.2e| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Direction indicator flashing more than 120 times per minute front and rear |1.5.1c| | 1 |
| Stop lamp does not emit a steady light when front brake applied |1.3.1b| | 1 |
| Nearside Direction indicators flashing less than 60 times a minute does not flash |1.5.1c| | 1 |
| Offside Direction indicators flashing less than 60 times a minute does not flash |1.5.1c| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front position lamp incorrect colour blue |1.1.2a| | 1 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Headlamp missing |1.2.3a| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Brake lever attachment screws missing |3.1.2b| | 1 |
| Stop lamp not working wired wrong way round stop light on all the time |4.3.1 |a| |ii|| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Handlebar handgrip missing |2.1.1c| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Nearside Front Direction indicator missing |4.4.1 |a| |ii|| | 1 |
| Offside Front Direction indicator missing |4.4.1 |a| |ii|| | 1 |
| Stop lamp showing white light to the rear |4.3.3 |a| |ii|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Stop lamp not working On front control |4.3.1 |a| |ii|| | 1 |
| Front Direction indicator incorrect colour x 2 |1.5.1b| | 1 |
| Rear Exhaust has part of the system missing |7.1.1a| | 1 |
| Front Brake back plate|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Nearside Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Indicator switch defective |1.5.4| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Stop lamp not working both |4.3.1 |a| |ii|| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Steering linkage has excessive free play |2.2.2| | 1 |
| Rear Footrest insecure |6.2.1a| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Headlamp aim not tested Could not test any lights as unable to start vehicle (4.1.2 (b)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Rear switch not working (4.3.2 (a) (iii)) | 1 |
| Stop lamp showing white light to the rear (4.3.3 (a) (ii)) | 1 |
| Headlamp aim not tested No pattern (4.1.2 (b)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Position lamp not working tail light does not illuminate on low beam (4.2.1 (a)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |