| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 15 |
| Rear reflector missing (4.8.2 (a) (ii)) | 14 |
| Registration plate issues | 13 |
| Stop lamp remains on when the brakes are released | 10 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 9 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 8 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 6 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 5 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Registration plate lamp issues | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Brake grabbing severely (1.2.1 (c)) | 3 |
| Rear Brake grabbing severely (1.2.1 (c)) | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Upper Suspension arm attachment bracket/mounting insecure nut missing from bolt (5.3.3 (a) (i)) | 1 |
| Offside Front All position lamps not working (4.2.1 (a)) | 1 |
| Front All direction indicators incorrect colour Both (4.4.3 (a)) | 1 |
| Throttle operating incorrectly sticking (6.2.7 (a) (i)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Parking brake lever missing no mechanical parking brake fitted (1.1.6 (d)) | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp not working both (4.3.1 (a) (ii)) | 1 |
| Rear Brake caliper leaking bleed nipple not tight enough (1.1.16 (b) (i)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Brake disc significantly and obviously worn Light cracking on cooling vent, (1.1.14 (a) (i)) | 1 |
| Offside Rear Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Front Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (Cracked) (5.2.1 (c) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Central Front Lower Brake indicates excessive fluctuation of brake effort front discs showing excessive fluctuation (warped) on roller brake tester (1.2.1 (e)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Offside Rear Exhaust silencer likely to become detached Cable ties used to hold in on. (8.1.1 (b) (ii)) | 1 |
| Rear Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Stop lamp not working Rear switch dirty, (4.3.1 (a) (ii)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Headlamp light source and lamp not compatible HID lamp fitted. (4.1.4 (c)) | 1 |
| Front Lower Exhaust has a major leak of exhaust gases Downpipes Blowing (6.1.2 (a)) | 1 |
| Central Rear Upper Position lamp not working (4.2.1 (a)) | 1 |
| Central Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Steering headbearing has excessive free play (2.2.2) | 1 |
| Front Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake grabbing severely Brake failure warning light flashing red. Servo assisted (1.2.1 (c)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Brake component insecure Brake fluid reservoir (1.1.21 (c)) | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Brake performance unable to be tested (1.2.1 (g)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Offside Lower Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Exhaust has a major leak of exhaust gases around collector area underneath (6.1.2 (a)) | 1 |
| Nearside Direction indicator adversely affected by the operation of another lamp sidecar (4.4.3 (b)) | 1 |
| Nearside Position lamp adversely affected by the operation of another lamp sidecar (4.2.3 (b)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Lower Shock absorber insecurely attached Lower shock bolt loose (5.3.2 (a) (i)) | 1 |
| Wheel bearing play so excessive that directional control is impaired front (5.1.3 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Central Front Upper Steering linkage locking device missing (2.1.3 (d)) | 1 |
| Offside Lower Brake cylinder leaking heavy brake fluid leak from rear brake master cylinder (1.1.16 (b) (i)) | 1 |
| Exhaust has a major leak of exhaust gases Front exhaust where header pipes join main system (6.1.2 (a)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Central Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Exhaust has a major leak of exhaust gases Down-pipes (6.1.2 (a)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected sticks (6.2.7 (a) (ii)) | 1 |