| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 25 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 13 |
| Front Brake excessively binding (1.2.1 (f)) | 10 |
| Headlamp insecure |1.2.3b| | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 3 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Position lamp not working (4.2.1 (a)) | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Horn not working |1.7.3a| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Nearside Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Rear Rear wheel bearings are excessively tight |2.4.A.2c| | 1 |
| Direction indicator likely to become detached L/H/R |4.4.1 |c| |ii|| | 1 |
| Rear Wheel fixing loose |single fixing| Wheel nut loose. |5.2.1 |a| |ii|| | 1 |
| Rear Brake cable insecure | 1 |
| Offside Rear Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Front Lower Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Rear Brake lagging in operation |1.2.1 |d|| | 1 |
| Offside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Nearside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Rear Brake cylinder insecurely mounted |3.2.B1a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Nearside Rear Direction indicator obscured |1.5.1a| | 1 |
| Brake performance not tested |3.3| | 1 |
| Rear Direction indicator obviously incorrectly positioned min required spacing is 180mm apart |4.4.3 |a|| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Brake effort inadequate at a wheel leaver hits bars |1.2.1 |a| |i|| | 1 |
| Nearside Front Upper Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Upper Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Upper Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Rear Upper Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Centre Front Lower Fuel system component insecure |7.2.1b| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Nearside Rear Stop lamp adversely affected by the operation of another lamp |4.3.3 |b|| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| 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| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front suspension assembly component excessively misaligned steering needs attention |2.3.1| | 1 |
| Steering lock stop maladjusted |2.1.3| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Fuel cap missing |7.2.2a| | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Brake lever is bent and the brake cannot be readily applied Front brake. (1.1.2 (d)) | 1 |
| Nearside Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Central Front Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Nearside Brake lever mounting cracked |3.1.2c| | 1 |
| Nearside Brake lever mounting insecure |3.1.2a| | 1 |
| Nearside Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Stop lamp not working front and rear (4.3.1 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Rear Brake lever has inadequate reserve travel rear brake lever comes bake to handle bars when applied |3.1.3b| | 1 |
| Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Offside Front Brake lever is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Nearside Front Forks in such a condition that steering control is adversely affected Fork fouling body work (2.2.2 (d) (ii)) | 1 |
| Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Rear Direction indicators not working and damaged, broken mount |1.5.1c| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Brake performance not tested FRONT BRAKE SEIZED |1.2.1 |g|| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Handlebar grip insecure to handlebar right hand switch gear/mirror mount/throttle housing |2.2.1 |d| |ii|| | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface painted over |4.8.1 |a| |ii|| | 1 |
| Front Brake caliper cracked and braking performance affected (1.1.16 (a) (ii)) | 1 |
| Offside Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |