| Most common failures | No# failures |
|---|
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 39 |
| Steering headbearing has excessive free play |2.2.2| | 28 |
| Horn not working |1.7.3a| | 25 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 22 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 22 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 21 |
| Headlamp aim out of alignment | 19 |
| Front wheel bearings are excessively rough |2.3.5b| | 14 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 13 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 10 |
| Riders seat insecure |6.2.1a| | 9 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Front wheel bearings have excessive free play |2.3.5b| | 7 |
| Throttle operating incorrectly |6.2.1f| | 7 |
| 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| | 6 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 6 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Front Steering headbearing has excessive free play |2.2.2| | 6 |
| Stop lamp remains on when the brake is released |1.3.1e| | 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 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 5 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear Brake lever insecure |3.1.2a| | 4 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 3 |
| Registration plate issues | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Brake lever cannot be applied smoothly |3.1.3d| | 3 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Exhaust mounting missing |7.1.1c| | 2 |
| Front Direction indicator not working |1.5.1c| | 2 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 2 |
| Indicator switch insecure |1.5.4| | 2 |
| Fuel cap sealing washer missing |7.2.2c| | 2 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Stop lamp emits other than a steady red light |1.3.1b| | 2 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 2 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Rear 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 |
| Fuel cap sealing washer torn |7.2.2c| | 2 |
| Front Headlamp insecure |1.2.3b| | 2 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Fuel system component leaking |7.2.1a| | 1 |
| Front Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front shock absorber seal failed and leaking oil Both forks |2.3.3| | 1 |
| Exhaust is leaking and excessively noisey At head joint |7.1.1b| | 1 |
| Brake lever has inadequate reserve travel Rear brake lever |3.1.3b| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Brake lever pivots excessively worn |3.1.3a| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Riders seat insecure |6.2.1a| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Central Upper Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Nearside Upper Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake lever has inadequate reserve travel rear brake lever |3.1.3b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Centre Front 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 |
| Centre Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Centre Rear Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Lower Fuel pipe leaking |7.2.1a| | 1 |
| Front Brake master cylinder severely corroded |3.2.B1b| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Nearside Brake lever attachment screws missing |3.1.2b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Centre Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Front Position lamp switch insecure |1.1.4b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Lower Fork yoke deformed |2.1.1b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| An item not tested |Manual| | 1 |
| Riders seat with a defective supporting structure front hinge broken (6.2.5 (a) (i)) | 1 |
| Brake locking device insecure |3.2.A1e| | 1 |
| Front suspension fouling which affects the movement of the front suspension. Wheel fouling frame |2.3.6a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Centre Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Front Handlebar deformed |2.1.1b| | 1 |
| Nearside Outer Front Horn not working |1.7.3a| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Lower Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Front Upper Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Centre Rear Upper Fuel tank leaking |7.2.1a| | 1 |
| Offside Rear Lower Brake lever excessively chafed |3.2.A1a| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Nearside Brake lever attachment screws loose |3.1.2b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Brake caliper insecurely mounted and braking performance affected |1.1.16 |c| |ii|| | 1 |
| Roller brake test brake efficiency less than 27.5% overall |1.2.2 |a| |ii|| | 1 |
| Offside Rear Exhaust mounting missing |7.1.1c| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Brake component is severely distorted |3.1.5| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Nearside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Upper Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Nearside Fuel system component insecure |7.2.1b| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Offside Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Offside Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Motorcycle structure cracked |6.1.1a| | 1 |
| Nearside Rear Upper Motorcycle structure cracked |6.1.1a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Brake lever attachment screws missing |3.1.2b| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear reflector on sidecar incorrectly positioned |1.4.2d| | 1 |
| Nearside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Brake lever is inoperative |3.1.3c| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Rear position lamp insecure |1.1.1c| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Front Steering headbearing has excessive free play (2.2.2) | 1 |