| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 142 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 70 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 61 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 42 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 35 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 34 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 31 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 26 |
| Steering headbearing has excessive free play |2.2.2| | 23 |
| Registration plate issues | 21 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 21 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 21 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 20 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 19 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 17 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 17 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 15 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 15 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 15 |
| Exhaust excessively deteriorated |7.1.1a| | 14 |
| Horn not working |1.7.3a| | 14 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 13 |
| Registration plate lamp issues | 13 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 13 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 12 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 12 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 11 |
| Throttle operating incorrectly |6.2.1f| | 11 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 10 |
| Stop lamp emits other than a steady red light |1.3.1b| | 9 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 8 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 8 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 7 |
| Indicator switch defective |1.5.4| | 7 |
| Riders seat insecure |6.2.1a| | 7 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 7 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Nearside Indicator tell tale not functioning |1.5.2| | 6 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Headlamp switch faulty |1.2.4| | 6 |
| Headlamp aim not tested |1.6| | 6 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 6 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 6 |
| Fuel cap sealing washer missing |7.2.2c| | 5 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Offside Indicator tell tale not operating correctly |1.5.2| | 5 |
| Rear Brake excessively binding (1.2.1 (f)) | 5 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 5 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Nearside Steering lock stop ineffective |2.1.3| | 5 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 5 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Rear position lamp incorrect colour |1.1.2b| | 5 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 5 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Nearside Direction indicators not working |1.5.1c| | 4 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 4 |
| Front suspension has inadequate damping effect. |2.3.6c| | 4 |
| Offside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 4 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Rear Brake excessively binding |1.2.1 |f|| | 3 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 3 |
| Offside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Exhaust mounting missing |7.1.1c| | 3 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 3 |
| Indicator tell tale not operating correctly |1.5.2| | 3 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 3 |
| Offside Indicator tell tale not functioning |1.5.2| | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Front mudguard insecure |2.3.7| | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 3 |
| Nearside Front shock absorber seal failed and leaking oil (2.3.3) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 3 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Rear position lamp damaged and function impaired |1.1.1b| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 3 |
| Offside Stop lamp emits other than a steady red light |1.3.1b| | 3 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 3 |
| Nearside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Centre Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Nearside Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 3 |
| Offside Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 3 |