| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 41 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 15 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 13 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 12 |
| Registration plate issues | 10 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 10 |
| Steering headbearing has excessive free play |2.2.2| | 9 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| 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|| | 7 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 6 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 5 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Riders seat insecure |6.2.1a| | 4 |
| Headlamp insecure |1.2.3b| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Exhaust mounting missing |7.1.1c| | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Seat insecure |6.2.1a| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Indicator switch insecure |1.5.4| | 2 |
| An item not tested |Manual| | 2 |
| Rear mono-shock pivot seized |2.4.B.4| | 2 |
| Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Handlebar mounting clamp loose |2.1.1a| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 2 |
| 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| | 2 |
| Rear wheel insecure |4.2.3b| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Brake back plate|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake pipe inadequately supported pipe to to rear caliper |3.2.B2b| | 1 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Rear Brake hose excessively kinked |3.2.B3a| | 1 |
| Offside Front suspension assembly component cracked |2.3.1| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Offside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake lever has inadequate reserve travel Aftermarket cranked type fitted |3.1.3b| | 1 |
| Rear Upper Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Nearside Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Headlamp insecure |1.2.3b| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Fuel cap ineffective not secure (6.1.3 (b) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Brake component is severely distorted |3.1.5| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Nearside Front Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear An item not tested |Manual| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Motorcycle structure adversely modified |6.1.1b| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Outer Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Brake lever is inoperative |3.1.3c| | 1 |
| Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Offside Position lamp switch insecure |1.1.4b| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Brake lever is inoperative |3.1.3c| | 1 |
| Front Brake cylinder insecurely mounted |3.2.B1a| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Rear position lamp incorrect colour |1.1.2b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Registration plate lamp issues | 1 |
| Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 1 |
| Nearside Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Front Brake component is excessively corroded |3.1.5| | 1 |
| Front Steering lock stop missing |2.1.3| | 1 |
| Vehicle identification number not permanently displayed |6.3.5a| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Steering lock stop missing no restriction on O/S lock |2.1.3| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Nearside Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Headlamp switch insecure |1.2.4| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Rear Lower Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |