| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 9 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 6 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 6 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 4 |
| Front Position lamp not working (4.2.1 (a)) | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Registration plate issues | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Rear Footrest missing (6.2.12 (a)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Wheel spindle locking device missing torque arm split pin (5.2.1 (d)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Offside Rear Steering linkage locking device missing CHAIN ADJUSTER BOLT MISSING |2.1.3 |d|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected O/S LOCK REVS HIGH |6.2.7 |a| |ii|| | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort front disc warped |1.2.1 |e|| | 1 |
| Suspension component pin or bush excessively worn swingarm bushs |5.3.4 |a| |i|| | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Rear Brake pivot excessively worn (1.1.15 (b)) | 1 |
| Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Brake pedal pivot excessively tight (1.1.1 (a)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Suspension arm insecurely attached (5.3.3 (a) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected notchy |2.2.2 |f| |ii|| | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Suspension arm pin or bush excessively worn swing arm |5.3.4 |a| |i|| | 1 |
| Front All direction indicators obviously incorrectly positioned Min separation is 240mm on Front (4.4.3 (a)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Brake reaction bracket excessively worn (1.1.15 (b)) | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Suspension arm attachment bracket/mounting insecure |5.3.3 |a| |i|| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Brake component insecure brake torque arm loose and split pin missing (1.1.21 (c)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Offside Rear Lower Shock absorber insecurely attached nut loose (5.3.2 (a) (i)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp reflector seriously defective (4.1.1 (b) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering rear wheel not adjusted correctly (2.4 (a)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure rear wheel torque arm /front bolt loose (6.1.1 (b) (i)) | 1 |
| Front Brake caliper leaking and braking performance affected (1.1.16 (b) (ii)) | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Offside Front Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Brake fluid not visible (1.1.10 (d) (iii)) | 1 |
| Central Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Central Front All position lamps not working |4.2.1 |a|| | 1 |
| Central Rear All position lamps not working |4.2.1 |a|| | 1 |
| Central Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Central Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Central Rear Wheel spoke missing |5.2.2 |d|| | 1 |
| Central Front Upper Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Wheel damaged or distorted to the extent that control of the motorcycle is likely to be adversely affected (5.2.2 (c) (ii)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Motorcycle structure joining/attachment plate or fastening insecure side panel. (6.1.1 (b) (i)) | 1 |
| Nearside Motorcycle structure joining/attachment plate or fastening insecure side panel. (6.1.1 (b) (i)) | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Offside Front All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Offside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Drive chain excessively tight unable to adjust corrctly due to tihght spots (6.1.7 (k) (i)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Brake back plate insecure |1.1.14 |d|| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Suspension component mounting has an unsafe modification Mudguard/Brace missing,handling may be adversely affected (5.3.3 (c) (i)) | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Suspension arm ball joint excessively worn Rail trailing arm suspension bushes worn (5.3.4 (a) (i)) | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |