| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 12 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 10 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 3 |
| Rear reflector on motorcycle obscured |1.4.1| | 3 |
| Handlebar mounting clamp loose |2.1.1a| | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 3 |
| Headlamp insecure |1.2.3b| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Horn not working |1.7.3a| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Brake lever mounting insecure |3.1.2a| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Rear Braking system does not have an approriate system/s fitted according to its age |3.1.1| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Centre Rear Lower Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Registration plate issues | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 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 |
| Front suspension assembly component excessively corroded. o/s n/s fork legs |2.3.1| | 1 |
| Rear Fuel system component insecure pipe |7.2.1b| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. |3.3.E1b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Headlamp insecure all fairing |1.2.3b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Fuel system component insecure air filter housing with fuel valve |7.2.1b| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Exhaust is leaking and excessively noisey blowing from engine |7.1.1b| | 1 |
| Front Brake hose excessively twisted |3.2.B3a| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Stop lamp does not illuminate immediately a brake applies Front left hand lever |1.3.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised Large notch in centre of bearing |2.2.1b| | 1 |
| Rear suspension bush has excessive free play Engine mount bracket hanger Both sides |2.4.A2a|i|| | 1 |
| Rear suspension bush excessively deteriorated Engine mount bracket hanger Both sides |2.4.A2a|i|| | 1 |
| Wheel alignment incorrect which adversely affects the handling Engine mount bracket hanger bushes causing misalignment |2.5.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering Engine mount bracket hanger bushes causing misalignment |2.5.1| | 1 |
| Rear wheel spindle securing nut|s| loose Rear wheel loose play side to side |2.4.A.2b| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |