| Most common failures | No# failures |
|---|
| Front Brake excessively binding (1.2.1 (f)) | 16 |
| Rear reflector missing (4.8.2 (a) (ii)) | 13 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 12 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 12 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 12 |
| Rear Brake excessively binding (1.2.1 (f)) | 8 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 7 |
| Registration plate issues | 7 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 6 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 5 |
| Headlamp aim out of alignment | 5 |
| Registration plate lamp issues | 5 |
| Front Wheel spindle locking device missing (5.2.1 (d)) | 4 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 4 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 4 |
| 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)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Offside Rear 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)) | 3 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Rear Shock absorber has negligible damping effect Rear Suspension Seized (5.3.2 (b)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Central Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Rear Wheel spindle locking device ineffective (5.2.1 (d)) | 2 |
| Front Headlamp incorrect colour (4.1.4 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Rear Drive chain sprocket so loose it is likely to fail Lock nuts missing! (6.1.7 (c) (ii)) | 1 |
| Central Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Brake excessively binding Fr. Brake (1.2.1 (f)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Rear brake not working stop light (4.3.2 (a) (iii)) | 1 |
| Stop lamp not working foot (4.3.1 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Nearside Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Shock absorber has negligible damping effect no damping seized (5.3.2 (b)) | 1 |
| Steering headbearing has excessive wear or free play top and bottom (2.2.2 (f) (i)) | 1 |
| Stop lamp not working off foot brake (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Rear Shock absorber has negligible damping effect Suspension seized. (5.3.2 (b)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Suspension arm modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Stop lamp not working second control (4.3.1 (a) (ii)) | 1 |
| Offside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect REAR DAMPING RESTRICTED TRAVEL (5.3.2 (b)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect no beam pattern visible (4.1.2 (c)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected STEERING BEARINGS - EXCESSIVE PLAY (2.2.2 (f) (ii)) | 1 |
| Nearside Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Offside Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Offside Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Front Brake excessively binding unable to check wheel bearings (1.2.1 (f)) | 1 |
| Rear Shock absorber has negligible damping effect suspension seized and not operating correctly (5.3.2 (b)) | 1 |
| Rear Brake excessively binding unable to check wheel bearings (1.2.1 (f)) | 1 |
| Front Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Rear Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Rear Suspension component modified so the suspension is inoperative Seized (5.3.3 (c) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear Footrest missing pillion (6.2.12 (a)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls does not opperate on the foot control (4.3.2 (a) (iii)) | 1 |
| Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Suspension rod modified so the suspension is inoperative rear suspension seized (5.3.3 (c) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Wheel excessively damaged (5.2.2 (c) (i)) | 1 |
| Central Front Brake excessively binding (1.2.1 (f)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Direction indicator obviously incorrectly positioned Rear indicators positioned too close together. (4.4.3 (a)) | 1 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Offside Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Nearside Front Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls Rear switch faulty (4.3.2 (a) (iii)) | 1 |
| Nearside Front Upper Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Upper Direction indicator not working both n/s indicators not flashing .. (4.4.1 (a) (ii)) | 1 |
| Central Front Lower Wheel spindle locking device missing split pin missing front castle nut (5.2.1 (d)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Handlebar retaining device missing both front clip on to yoke bolts missing (2.2.1 (b) (i)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Stop lamp not working from rear foot pedal (4.3.1 (a) (ii)) | 1 |
| Central Rear Suspension arm modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Offside Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Central Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Suspension component mounting modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Front Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear Stop lamp not working control 2 (4.3.1 (a) (ii)) | 1 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect rear suspension hard / no movement (5.3.2 (b)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Shock absorber insecurely attached linkage bolts loose (5.3.2 (a) (i)) | 1 |
| Rear Shock absorber has an excessively worn bush excessive movement in rear linkage (5.3.2 (c)) | 1 |
| Offside Front Upper Stop lamp does not illuminate by the operation of both brake controls brake lever (4.3.2 (a) (iii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Brake component modification adversely affecting braking performance rear disc diameter under size (1.1.21 (d) (ii)) | 1 |