| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 31 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 24 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 20 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 20 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 13 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 12 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 11 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 9 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Registration plate issues | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 7 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Horn not working |1.7.3a| | 6 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 6 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Steering headbearing has excessive free play |2.2.2| | 6 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Offside Front Direction indicator insecure |1.5.3b| | 5 |
| Nearside Front Direction indicator insecure |1.5.3b| | 5 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 4 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 3 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear suspension component loose |2.4.A.1a| | 2 |
| Offside Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear reflector on motorcycle obscured |1.4.1| | 2 |
| Exhaust mounting missing |7.1.1c| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Centre Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Centre Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Registration plate lamp issues | 1 |
| Nearside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Rear wheel insecure |4.2.3b| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Brake lever pivot has excessive free play |1.1.1 |b|| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Upper Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| 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 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies Off the rear brake lever |1.3.1a| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Front position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Brake performance not tested |3.3| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies both levers |1.3.1a| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front Headlamp aim not tested |4.1.2 |b|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Motorcycle structure is so deformed it is likely to adversely affect braking or steering steering control pulls to the left |6.1.1 |a| |ii|| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn emits 2 or more alternating tones |1.7.3b| | 1 |
| Front Brake lever attachment screws missing |3.1.2b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Brake cylinder severely damaged |3.2.B1b| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Rear Brake lever not releasing correctly and functionality of brakes affected |1.1.2 |b| |ii|| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Brake component is excessively corroded |3.1.5| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Brake component is excessively corroded |3.1.5| | 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 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |