| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 28 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Rear Brake excessively binding |1.2.1 |f|| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Registration plate lamp issues | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front suspension assembly component excessively corroded. front legs badly pitted |2.3.1| | 1 |
| Front suspension has inadequate damping effect. front forks bottom out |2.3.6c| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 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 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Offside Exhaust excessively deteriorated |7.1.1a| | 1 |
| Upper Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Centre Rear Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear mono-shock insecure |2.4.B.4| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Indicator tell tale not functioning |1.5.2| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Throttle operating incorrectly sticking and excesively high idle speed |6.2.1f| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Fuel cap ineffective Can not access |6.1.3 |b| |i|| | 1 |
| Offside Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Handlebar excessively deformed |2.2.1 |c| |i|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Brake disc significantly and obviously worn below minimum thickness , measured at 4.3mm spec 5mm |1.1.14 |a| |i|| | 1 |
| Offside Front Fuel pipe leaking |7.2.1a| | 1 |
| Nearside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Brake disc fractured |1.1.14 |a| |ii|| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Exhaust is leaking and excessively noisey down pipes |7.1.1b| | 1 |
| Front Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Upper Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Registration plate issues | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Brake caliper excessively weakened by corrosion (1.1.16 (d) (i)) | 1 |
| Rear Brake caliper excessively weakened by corrosion (1.1.16 (d) (i)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Wheel fixing loose (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Central Rear Inner Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Upper Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Lower Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Front Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Hazard warning lamps not fitted (4.4.1 (d)) | 1 |
| Nearside Rear Stop lamp(s) missing (4.3.1 (a) (ii)) | 1 |
| Offside Rear Stop lamp(s) missing (4.3.1 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Position lamp switch does not operate in accordance with the requirements main light switch broken (4.2.2 (a)) | 1 |
| Rear Shock absorber insecurely attached bottom shock bolt loose (5.3.2 (a) (i)) | 1 |