| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Registration plate issues | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Registration plate lamp issues | 1 |
| Rear Position lamp light intensity significantly reduced lamp very small (4.2.3 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Upper Fork yoke modification unsafe bolts not long enough and no lock nuts (2.2.2 (e)) | 1 |
| Stop lamp emits other than a steady red light illuminates reg lamp when pressed (4.3.3 (a) (ii)) | 1 |
| Front Position lamp adversely affected by the operation of another lamp side light coming on when brake applied (4.2.3 (b)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Exhaust has a major leak of exhaust gases exhaust blowing in numerous places (6.1.2 (a)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls front brake light switch not working (4.3.2 (a) (iii)) | 1 |
| Throttle operating incorrectly sticks on right hand lock |adjusted cable| |6.2.1f| | 1 |
| Brake locking device missing split pin missing on rear brake torque arm hole blocked up |lock nut fitted| |3.2.A1e| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Footrest missing |6.2.12 |a|| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Nearside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |