| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 27 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Registration plate issues | 9 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 6 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 6 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 6 |
| Horn not working |1.7.3a| | 6 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Rear Drive chain excessively loose |6.2.1d| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Rear suspension component seized |2.4A2a|ii|| | 1 |
| Centre Rear Drive chain excessively loose |6.2.1d| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front shock absorber seal failed and leaking oil left hand front |2.3.3| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Outer Front Upper Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Offside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Inner Front Upper Rear position lamp insecure |1.1.1c| | 1 |
| Offside Front Upper Indicator tell tale not functioning |1.5.2| | 1 |
| Inner Front Upper Horn control not functioning. |1.7.2b| | 1 |
| Inner Front Lower Drive chain excessively loose |6.2.1d| | 1 |
| Inner Rear Lower Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Inner Front Lower Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Inner Rear Lower Rear wheel insecure |4.2.3b| | 1 |
| Outer Rear Lower Drive chain excessively loose |6.2.1d| | 1 |
| Centre Rear Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Centre Rear Lower Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear suspension component seized |2.4A2a|ii|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 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 Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Front Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Offside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Central Front Inner Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| An item not tested |Manual| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear mono-shock pivot seized |2.4.B.4| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 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 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Offside Drive chain horseshoe locking device incorrectly fitted locking devise missing |6.1.7 |j| |i|| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Nearside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Handlebar grip insecure to handlebar BOTH |2.2.1 |d| |ii|| | 1 |
| Drive chain excessively tight tight spots in links |6.2.1d| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Nearside Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Offside Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Stop lamp does not illuminate immediately a brake applies first and second |1.3.1a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Front Front wheel insecure |4.2.3b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Offside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Throttle operating incorrectly Engine revs rising when steering turned to full right lock |6.2.7 |a| |i|| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Registration plate lamp issues | 1 |
| Front Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Offside Rear Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Stop lamp not working front switch |4.3.1 |a| |ii|| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Centre Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Rear Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Offside Rear Drive chain excessively loose chain adjuster loose and could lock rear wheel. (6.1.7 (c) (i)) | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Front Steering operation impeded by a fairing (2.1.4 (e)) | 1 |