| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 15 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Nearside Rear Direction indicator not working |1.5.1c| | 5 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Registration plate issues | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Registration plate lamp issues | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Rear position lamp insecure |1.1.1c| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Indicator switch defective |1.5.4| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Offside Front Handlebar deformed |2.1.1b| | 1 |
| Rear suspension bearing has excessive free play Lower Linkage |2.4.A2a|i|| | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Nearside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Lower Motorcycle structure has a fracture which is likely to adversely affect braking or steering Fairing loose |6.1.1 |a| |ii|| | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Brake disc significantly and obviously worn Measures 3.55mm min thickness is 4.00mm (1.1.14 (a) (i)) | 1 |
| Offside Front Brake disc significantly and obviously worn Measures 3.65mm min thickness is 4.00mm (1.1.14 (a) (i)) | 1 |
| Offside Rear Brake disc significantly and obviously worn Measures 4.25mm min thickness is 4.50mm (1.1.14 (a) (i)) | 1 |
| Front Headlamp aim unable to be tested Both main and dip beam not working (4.1.2 (b)) | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 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 |
| Centre Front Lower Horn not working |1.7.3a| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Offside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Nearside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Nearside Front Brake locking device missing |3.2.A1e| | 1 |
| Offside Front Brake locking device missing |3.2.A1e| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Direction indicator incorrect colour All four did colouring |1.5.1b| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Front Brake caliper leaking and braking performance affected |1.1.16 |b| |ii|| | 1 |
| Offside Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle sticking open (6.2.7 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Footrest insecure (6.2.12 (a)) | 1 |