| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 53 |
| Headlamp aim out of alignment | 43 |
| Registration plate lamp issues | 26 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 22 |
| Horn not working (7.7 (a)) | 18 |
| Registration plate issues | 18 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 13 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 8 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 8 |
| Rear Brake excessively binding (1.2.1 (f)) | 8 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 6 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 6 |
| Front Brake excessively binding (1.2.1 (f)) | 6 |
| 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)) | 5 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| All direction indicators not working (4.4.1 (a) (ii)) | 4 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 4 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Rear Footrest missing (6.2.12 (a)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 2 |
| Front Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 2 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 2 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Front All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Stop lamp not working Control 1 (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working Control 2 (4.3.1 (a) (ii)) | 1 |
| Offside Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Central Rear Upper Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar left hand grip insecure (2.2.1 (d) (ii)) | 1 |
| Central Rear Rear reflector missing tail tidy fitted no reflector fitted (4.8.2 (a) (ii)) | 1 |
| Front Brake lagging in operation not smooth in its operation (1.2.1 (d)) | 1 |
| Rear Wheel spindle locking device missing PRS - Split pin fitted (5.2.1 (d)) | 1 |
| Offside Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Headlamp incorrect colour white with red tinge (4.1.4 (a)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls Lever (4.3.2 (a) (iii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls Foot pedal (4.3.2 (a) (iii)) | 1 |
| Brake performance unable to be tested excessive bind rear (1.2.1 (g)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Headlamp reflector seriously defective (4.1.1 (b) (ii)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Brake lagging in operation (1.2.1 (d)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Position lamp not working rear (4.2.1 (a)) | 1 |
| Forks excessively deformed forks bent (2.2.2 (d) (i)) | 1 |
| Front Wheel excessively damaged (5.2.2 (c) (i)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear Wheel fixing missing (single fixing) split pin (5.2.1 (a) (ii)) | 1 |
| Central Rear Rear reflector missing Not fitted (4.8.2 (a) (ii)) | 1 |
| Central Horn sound not in accordance with requirements Not loud (7.7 (c)) | 1 |
| Rear Stop lamp not working switch (4.3.1 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Headlamp aim not tested unable to test headlight aim as headlight does not illuminate (4.1.2 (b)) | 1 |
| Steering headbearing has excessive wear or free play play in upper bearing adjusted and ok (2.2.2 (f) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp not working When front brake applied. (4.3.1 (a) (ii)) | 1 |
| Nearside Front Upper Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Rear Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Wheel fixing missing (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Central Rear Upper Rear reflector missing rear reflector fitted (4.8.2 (a) (ii)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Central Rear Upper Rear reflector missing rear reflector missing - have replaced with new one (4.8.2 (a) (ii)) | 1 |
| Nearside Front Engine mounting/bracket missing (6.1.8 (a) (ii)) | 1 |
| Nearside Front Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Throttle operating incorrectly sticking on RH steering lock (6.2.7 (a) (i)) | 1 |
| Central Inner Horn not working cleaned horn connections to correct horn not working (7.7 (a)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Brake caliper has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort 25kgF fluctuation (1.2.1 (e)) | 1 |
| Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain excessively loose adjusted to suit. (6.1.7 (c) (i)) | 1 |