| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Registration plate lamp issues | 7 |
| Registration plate issues | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Brake hose damaged | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Rear Brake disc|s| cracked |3.2.A1g| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Horn not working |1.7.3a| | 3 |
| Horn sound not in accordance with requirements (7.7 (c)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Fuel tank leaking |7.2.1a| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 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 position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Offside Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Centre Rear Lower Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Upper Horn missing |1.7.1| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Central Front Brake excessively binding (1.2.1 (f)) | 1 |
| Central Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Nearside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Front Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Brake pipe union leaking fluid |3.2.B4| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Nearside Front Indicator switch insecure |1.5.4| | 1 |
| Motorcycle structure excessively corroded swingarm |6.1.1a| | 1 |
| Central Rear Riders seat insecure Replace Missing Securing Bolt On Rear Of Seat PRS |6.2.1a| | 1 |
| Offside Rear Suspension arm corroded and seriously weakened |5.3.3 |b| |i|| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Drive belt sprocket worn to excess |6.2.1e| | 1 |
| Centre Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Front Lower Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Centre Front Upper Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Centre Rear Upper Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies brake lever |1.3.1a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Nearside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Nearside Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Position lamp adversely affected by the operation of another lamp brake light |4.2.3 |b|| | 1 |
| Front Wheel excessively distorted |5.2.2 |c| |i|| | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Rear Brake hose excessively damaged (1.1.12 (b) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Central Front Indicator tell tale not operating correctly |1.5.2| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Drive chain sprocket excessively loose |6.1.7 |c| |i|| | 1 |
| Upper Front suspension assembly component loose |2.3.1| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Brake hose fouling |3.2.B3b| | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Throttle operating incorrectly Throttle control insecure |6.2.7 |a| |i|| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Front Brake cylinder insecure (1.1.16 (c) (i)) | 1 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Exhaust system insecure Heat Shields (6.1.2 (a)) | 1 |
| Front Upper Stop lamp remains on when the brake is released hand brake |1.3.1e| | 1 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Horn not working (1.7.3a) | 1 |
| Front Position lamp switch faulty (1.1.4a) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Brake performance not tested o/s/f pad fitted incorrectly |1.2.1 |g|| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Rear Brake caliper insecurely mounted and braking performance affected brake plate loose (1.1.16 (c) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Fuel system component leaking fuel tank (6.1.3 (b) (i)) | 1 |