| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 52 |
| Registration plate lamp issues | 20 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 11 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 10 |
| Rear Brake excessively binding (1.2.1 (f)) | 10 |
| Headlamp aim out of alignment | 9 |
| Horn not working (7.7 (a)) | 9 |
| Registration plate issues | 8 |
| Front Brake excessively binding (1.2.1 (f)) | 8 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 8 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 7 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 7 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 6 |
| Offside Rear Footrest missing (6.2.12 (a)) | 6 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 4 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 4 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Exhaust system insecure (6.1.2 (a)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Handlebar mounting so insecure that steering is adversely affected Risers/Clamps loose with cable stay not attached (2.2.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Offside Front Motorcycle structure is so deformed it is likely to adversely affect braking or steering frame bent (6.1.1 (a) (ii)) | 1 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Front Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Drive chain worn to excess seized links etc (6.1.7 (c) (i)) | 1 |
| Offside Rear Lower Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Central Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Rear Lower Drive chain excessively tight drive chain very tight in places indicating seized links (6.1.7 (k) (i)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Stop lamp not working when front brake is applied (4.3.2 (a) (iii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Front Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Front Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Offside Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Front Brake lever is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear reflector missing Replaced (4.8.2 (a) (ii)) | 1 |
| Rear Shock absorber likely to become detached (5.3.2 (a) (ii)) | 1 |
| Nearside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak FORK (5.3.2 (b)) | 1 |
| Stop lamp not working WHEN REAR BRAKE APPLIED - (4.3.1 (a) (ii)) | 1 |
| Offside Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Nearside Front Upper Horn not working Horn not working (7.7 (a)) | 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 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Front Brake lever has insufficient reserve travel Lever bent - touching handlebars when fully applied (1.1.2 (a)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Nearside Rear Direction indicator not working Damaged and not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Footrest missing Passengers footrest (6.2.12 (a)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |