| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 34 |
| Rear reflector missing (4.8.2 (a) (ii)) | 29 |
| Registration plate issues | 20 |
| Registration plate lamp issues | 20 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 12 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 10 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 8 |
| Rear Brake excessively binding (1.2.1 (f)) | 8 |
| Rear Footrest missing (6.2.12 (a)) | 7 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Offside Front Position lamp not working (4.2.1 (a)) | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Offside Rear Footrest missing (6.2.12 (a)) | 2 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Nearside Front Direction indicator obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Headlamp insecure broken/damaged on rear of headlamp assy (4.1.1 (c)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Front Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Central Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Footrest missing both rear (6.2.12 (a)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Offside Front Footrest missing (6.2.12 (a)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Nearside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Central Rear Lower Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Front Lower Suspension attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Nearside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Nearside Front Steering operation restricted in free movement from lock to lock ON HORN (2.1.4 (c)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Drive chain excessively tight rear chain to tight-re adjusted (6.1.7 (k) (i)) | 1 |
| Nearside Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Steering operation fouling on the fuel tank or bodywork on full lock lock stop on bottom yolk snapped (2.1.4 (b)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Brake lever pivot excessively worn (1.1.1 (b)) | 1 |
| Nearside Drive chain excessively tight Chain tight (6.1.7 (k) (i)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Rear Footrest insecure stiff (6.2.12 (a)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Steering linkage ball joint has excessive play (2.1.3 (b) (i)) | 1 |
| Front Brake component modification unsafe (1.1.21 (d) (i)) | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Nearside Fork yoke fractured LOCK STOP LUG (2.2.2 (d) (i)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Handlebar restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Throttle operating incorrectly NOT SECURE TO HANDLE BAR (6.2.7 (a) (i)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Fork yoke insecure top pinch bolts missing (2.2.2 (d) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Headlamp not working on main beam (4.1.1 (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 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |