| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Front Brake excessively binding (1.2.1 (f)) | 6 |
| Registration plate issues | 4 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Rear Brake caliper excessively corroded and likely to crack (1.1.16 (d) (ii)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Rear Brake master cylinder leaking (1.1.10 (b) (ii)) | 2 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Nearside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Nearside All position lamps not working (4.2.1 (a)) | 1 |
| Front Steering linkage ball joint has excessive play (2.1.3 (b) (i)) | 1 |
| Rear Lower Suspension rod pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Brake performance not tested due to binding rear brake (1.2.1 (g)) | 1 |
| Exhaust has a major leak of exhaust gases collector under engine (6.1.2 (a)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure side stand / gear change linkage (6.1.1 (b) (i)) | 1 |
| Rear Brake excessively binding unable to check rear wheel bearings due to binding brake (1.2.1 (f)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Engine mounting/bracket excessively loose frame flexing on brake tester (6.1.8 (a) (ii)) | 1 |
| Suspension arm likely to fail Rear suspension linkages to shock absorber seized resulting to rear suspension not working correctly (5.3.3 (b) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure front mudguard loose due to missing bolts (6.1.1 (b) (i)) | 1 |
| Rear Lower Motorcycle structure joining/attachment plate or fastening insecure Bottom Shock Bolt loose and lock nut missing (6.1.1 (b) (i)) | 1 |
| Front Brake pipe connection leaking (1.1.11 (b)) | 1 |
| Front Lower Exhaust has a major leak of exhaust gases sespect couple of leaks at pipe welded joints (6.1.2 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced final drive mounting insecure. (6.1.1 (b) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Nearside Outer Front Upper Front position lamp does not illuminate immediately when switched on (1.1.3a) | 1 |
| Centre Front Upper Headlamp at least one does not illuminate on dipped beam (1.2.2a(i)) | 1 |
| Offside Front Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Brake disc fractured brake disc / drive wheel mounting bracket cracked in 3 places (1.1.14 (a) (ii)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Headlamp incorrect colour Blue (4.1.4 (a)) | 1 |
| Nearside Footrest insecure (6.2.12 (a)) | 1 |
| Rear Suspension component ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Brake disc significantly and obviously worn Rivits Loose (1.1.14 (a) (i)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |