| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Registration plate issues | 6 |
| Registration plate lamp issues | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Roller brake test indicates a binding brake rear |3.3.A1a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies Front |1.3.1a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear reflector missing |4.8.2 |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 |
| Stop lamp does not illuminate immediately a brake applies front switch |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear switch |1.3.1a| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Suspension rod modified so the suspension is inoperative |5.3.3 |c| |ii|| | 1 |
| Rear Brake component modification unsafe cable mounting |1.1.21 |d| |i|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Central Front Steering headbearing in such a condition that steering control is adversely affected very notchey (2.2.2 (f) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Steering headbearing excessively stiff or notchy Stiff on full R & L lock (2.2.2 (f) (i)) | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Central Front Stop lamp light intensity significantly reduced both lamps (4.3.3 (a) (ii)) | 1 |
| Central Rear Stop lamp light intensity significantly reduced no brake light (4.3.3 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak Right front fork seal leaking (5.3.2 (b)) | 1 |
| Fuel system component leaking Left carb leaking fuel (6.1.3 (b) (i)) | 1 |
| Drive chain so worn it is likely to fail Chain & sprockets worn out (6.1.7 (c) (ii)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up Rear wheel bearings worn out (5.1.3 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering Wheels significantly out of alignment (2.4 (a)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail Rear sprocket dangerous (6.1.7 (c) (ii)) | 1 |
| All direction indicators not working not flahing (4.4.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| 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 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Offside Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front shock absorber seal failed and leaking oil N/S |2.3.3| | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Drive chain sprocket so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |