| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 34 |
| Front wheel bearings are excessively rough |2.3.5b| | 13 |
| Registration plate lamp issues | 13 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Stop lamp remains on when the brakes are released | 4 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Registration plate issues | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Rear Stop lamp emits other than a steady red light |1.3.1b| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Brake hose damaged | 1 |
| Offside Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Central Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front wheel has a missing wheel nut|s| |4.2.3a| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Offside Front Stop lamp not working switch |4.3.1 |a| |ii|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Front Upper Horn sounds harsh or grating |1.7.3c| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Exhaust mounting missing |7.1.1c| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 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 |
| Front wheel insecure front wheel berings |4.2.3b| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Centre Rear Lower Vehicle identification number has more than one different number displayed |6.3.5b| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Rear suspension bearing has excessive free play rear suspension bearings missing |2.4.A2a|i|| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Offside Front Suspension component fractured (5.3.3 (b) (ii)) | 1 |
| Front Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Handlebar grip insecure to handlebar fitted a hose clip to secure at customer request (2.2.1 (d) (ii)) | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp not working front brake (4.3.1 (a) (ii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Exhaust has a major leak of exhaust gases at muffler joint to downpipe |6.1.2 |a|| | 1 |
| Rear 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|| | 1 |
| Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Leg shield insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Rear position lamp incorrect colour |1.1.2b| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Sidecar rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |