| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 81 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 57 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 55 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 52 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 41 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 34 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 33 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 22 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 19 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 18 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 17 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 16 |
| Steering headbearing has excessive free play |2.2.2| | 16 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 15 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 14 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 13 |
| Registration plate issues | 13 |
| Horn not working |1.7.3a| | 11 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 9 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 9 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 8 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 8 |
| Throttle operating incorrectly |6.2.1f| | 7 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Exhaust excessively deteriorated |7.1.1a| | 7 |
| Rear position lamp damaged and function impaired |1.1.1b| | 6 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Riders seat insecure |6.2.1a| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 5 |
| Nearside Indicator tell tale not operating correctly |1.5.2| | 5 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 5 |
| Stop lamp emits other than a steady red light |1.3.1b| | 5 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 5 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Headlamp aim not tested |1.6| | 4 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 4 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Rear Brake excessively binding |1.2.1 |f|| | 4 |
| Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 4 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 4 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 4 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Headlamp switch faulty |1.2.4| | 4 |
| Offside Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 3 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 3 |
| Registration plate lamp issues | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Nearside Indicator tell tale not functioning |1.5.2| | 3 |
| Indicator tell tale not operating correctly |1.5.2| | 3 |
| Horn control defective |1.7.2a| | 3 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 3 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Offside Steering lock stop ineffective |2.1.3| | 2 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 2 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Front suspension assembly component excessively corroded. |2.3.1| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 2 |
| Fuel cap sealing washer missing |7.2.2c| | 2 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Rear Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 2 |
| Rear suspension component cracked |2.4.A.1a| | 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 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Indicator switch defective |1.5.4| | 2 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 2 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 2 |
| 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|| | 2 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |