| Most common failures | No# failures |
|---|
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 36 |
| Headlamp aim out of alignment | 29 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 28 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 25 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 25 |
| Steering headbearing has excessive free play |2.2.2| | 22 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 21 |
| Horn not working |1.7.3a| | 20 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 17 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 15 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 12 |
| Registration plate issues | 12 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 10 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 8 |
| Throttle operating incorrectly |6.2.1f| | 8 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 8 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 7 |
| Front Steering headbearing has excessive free play |2.2.2| | 7 |
| Brake lever has inadequate reserve travel |3.1.3b| | 7 |
| Riders seat insecure |6.2.1a| | 7 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 6 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 5 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Headlamp aim not tested |1.6| | 5 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 5 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 5 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 4 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 3 |
| Horn control defective |1.7.2a| | 3 |
| Headlamp switch faulty |1.2.4| | 3 |
| An item not tested |Manual| | 3 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| 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| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front suspension assembly component loose |2.3.1| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Built up wheel has a loose bolt/s |4.2.1c| | 2 |
| Lower Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 2 |
| Rear wheel insecure |4.2.3b| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Front Brake cable has a significantly damaged outer casing. |3.2.A1b| | 2 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 2 |
| Front position lamp adversely affected by the operation of the horn |1.1.3b| | 2 |
| Fuel cap sealing washer missing |7.2.2c| | 2 |
| Front wheel bearings are excessively tight |2.3.5b| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Gradient brake test indicates a sticking brake |3.3.D1c| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Brake back plate|s| insecure |3.2.A1j| | 2 |
| Front Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake cable has a significantly damaged outer casing. |3.2.A1b| | 1 |
| Front wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Brake excessively binding front and rear |1.2.1 |f|| | 1 |
| Rear wheel has a missing wheel nut|s| |4.2.3a| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Offside Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Offside Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Plate brake test No brake control achieves an efficiency of 30%. |3.3.B2a| | 1 |
| Rear reflector on sidecar damaged and function impaired |1.4.2a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front suspension assembly component missing nearside front fork, lock nut |2.3.1| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake cable knotted |3.2.A1b| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Headlamp main beam affected by the operation of another lamp bad earth |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of another lamp bad earth |1.2.2c| | 1 |
| Steering linkage has excessive free play tighten top pinch bolt on upper yoke |2.2.2| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Rear Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Central Inner Vehicle identification number not legible (0.2 (b)) | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake drum|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Riders seat missing |6.2.1a| | 1 |
| Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Centre Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Centre Front Brake lining|s| contaminated by oil or grease |3.2.A1k| | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Fuel pipe union leaking |7.2.1a| | 1 |
| Rear Gradient brake test indicates a severely grabbing brake |3.3.D1d| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Gradient brake test indicates a severely grabbing brake |3.3.D1d| | 1 |
| Offside Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Footrest insecure stand related parts |6.2.1a| | 1 |
| Nearside Front Front wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Rear reflector obviously incorrectly positioned |1.5.1a| | 1 |
| Offside Rear reflector obviously incorrectly positioned |1.5.1a| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Brake back plate|s| insecure |3.2.A1j| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Steering damper insecure |2.1.2d| | 1 |
| Front Gradient brake test indicates a sticking brake |3.3.D1c| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake back plate|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Front Brake pedal attachment screws loose |3.1.2b| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Fork yoke in such a condition that steering control is adversely affected |2.2.2 |d| |ii|| | 1 |
| Stop lamp flickers when tapped lightly by hand |1.3.1d| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| Front position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Nearside Front Front suspension assembly component loose |2.3.1| | 1 |
| Throttle operating incorrectly throttle does not shut off on its own when steering is on lock. |6.2.1f| | 1 |
| Riders seat insecure seat lock does not work in closed position |6.2.1a| | 1 |
| Brake hose excessively deteriorated | 1 |
| Front Brake reaction bracket insecure |3.2.A1j| | 1 |
| Front Brake locking device missing |3.2.A1e| | 1 |
| Centre Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Offside Front Lower Brake hose fouling |3.2.B3b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Rear wheel has a loose wheel stud|s| |4.2.3a| | 1 |
| Front Brake locking device insecure |3.2.A1e| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Offside Front Lower Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |