| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 42 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 10 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 8 |
| Rear reflector missing (4.8.2 (a) (ii)) | 8 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 4 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Offside Front Lower Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Registration plate issues | 2 |
| Nearside Rear Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Decelerometer brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Steering headbearing excessively stiff or notchy With front wheel raised (2.2.2 (f) (i)) | 1 |
| Drive chain excessively loose adjusted to best safe adjustment, chain has a tight spot. (6.1.7 (c) (i)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Fuel pipe leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Nearside Rear Chain guard insecure (6.1.7 (i)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Rear Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Engine mounting/bracket missing bolts snapped off (6.1.8 (a) (ii)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Offside Rear Exhaust silencer insecure clamp missing replaced (8.1.1 (b) (i)) | 1 |
| Central Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Front Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Central Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Upper Shock absorber has a serious fluid leak fork seal leaking (5.3.2 (b)) | 1 |
| Brake indicates excessive fluctuation of brake effort rear (1.2.1 (e)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Brake component inadequately mounted rear brake caliper mount incorrectly located in swingarm. (1.1.21 (c)) | 1 |
| Central Rear Upper Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |