| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 25 |
| Headlamp aim out of alignment | 12 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 6 |
| Rear Position lamp not working (4.2.1 (a)) | 5 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 5 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 5 |
| Registration plate issues | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 4 |
| Horn not working (7.7 (a)) | 4 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 3 |
| Registration plate lamp issues | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Front Wheel spoke excessively loose (5.2.2 (d)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front Wheel bearing has excessive play Also rough on rotation (5.1.3 (a) (i)) | 1 |
| Rear reflector missing Replaced (4.8.2 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Central Front Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp aim not tested no dip beam (4.1.2 (b)) | 1 |
| Clutch lever shortened so it cannot be readily operated (6.2.7 (b)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Nearside Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Central Rear Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Horn not working loose wire (7.7 (a)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Forks excessively deformed (2.2.2 (d) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Nearside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| All direction indicators adversely affected by the operation of another lamp indicator affected by horn (4.4.3 (b)) | 1 |
| Stop lamp not working no stop light of front brake (4.3.1 (a) (ii)) | 1 |
| Shock absorber has negligible damping effect rear shock not damping (5.3.2 (b)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Wheel bearing so rough it is likely to overheat or break up front wheel bearing rough (5.1.3 (b) (ii)) | 1 |
| Wheel bearing has excessive play play in rear wheel bearing (5.1.3 (a) (i)) | 1 |
| Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Handlebar grip insecure to handlebar Throttle grip worn to excess. (2.2.1 (d) (ii)) | 1 |
| Brake cylinder has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 1 |
| Brake lever is positioned so that the brake cannot be readily applied front brake lever fouling on throttle body when fully applied. (1.1.2 (d)) | 1 |
| Throttle operating incorrectly throttle sticking (6.2.7 (a) (i)) | 1 |
| Front Wheel spoke excessively loose multiple loose spokes (5.2.2 (d)) | 1 |
| Rear Wheel spoke excessively bent multiple bent spokes (5.2.2 (d)) | 1 |
| Rear Wheel fixing loose (multiple fixings) Chain adjusting bolt not secure in swinging arm (5.2.1 (a) (i)) | 1 |
| Steering headbearing excessively stiff or notchy when turned to the right (2.2.2 (f) (i)) | 1 |
| Front Exhaust has a major leak of exhaust gases front from cylinder head (6.1.2 (a)) | 1 |
| Fork yoke insecure Top nut loose (2.2.2 (d) (i)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Stop lamp missing (4.3.1 (a) (ii)) | 1 |
| Nearside All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Footrest missing Pillion (6.2.12 (a)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp affected by indicators (4.2.3 (b)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Headlamp aim not tested low beam not working (4.1.2 (b)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted fitted in wrong direction (6.1.7 (j) (i)) | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake pedal so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Stop lamp not working on hand control (4.3.1 (a) (ii)) | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork oil seal (5.3.2 (b)) | 1 |
| Steering operation restricted in free movement from lock to lock excessively stiff (2.1.4 (c)) | 1 |
| Rear Suspension arm ball joint excessively worn swing arm (5.3.4 (a) (i)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Suspension arm pin or bush excessively worn swing arm movement (5.3.4 (a) (i)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Rear Footrest missing both (6.2.12 (a)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Rear Position lamp not working bulb blown (4.2.1 (a)) | 1 |
| Brake lever has restricted free movement catching on the throttle (1.1.15 (e)) | 1 |
| All direction indicators incorrect colour (4.4.3 (a)) | 1 |