| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Registration plate issues | 10 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Horn not working |1.7.3a| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Nearside Front Direction indicator insecure |1.5.3b| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Lower Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced (6.1.1 (b) (ii)) | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Throttle operating incorrectly Sticking not returning |6.2.7 |a| |i|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Sidecar direction indicator not working |1.5.1c| | 1 |
| Rear Sidecar direction indicator not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Sidecar wheel bearings have excessive free play |5.2.3c| | 1 |
| Nearside Sidecar direction indicator insecure |1.5.3b| | 1 |
| Steering damper in such a condition that the steering action is impaired. |2.1.2d| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Front Upper Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Offside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Inner Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Horn missing |1.7.1| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Brake locking device insecure |3.2.A1e| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front Brake hose which buldges |3.2.B4| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |