| Most common failures | No# failures |
|---|
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 19 |
| Rear reflector on motorcycle missing |1.4.1| | 14 |
| Headlamp aim out of alignment | 11 |
| Steering headbearing has excessive free play |2.2.2| | 11 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 10 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 10 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Registration plate issues | 7 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Horn not working |1.7.3a| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Offside Front suspension assembly component excessively corroded. |2.3.1| | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front mudguard insecure |2.3.7| | 2 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 2 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 2 |
| Nearside Front suspension assembly component excessively corroded. |2.3.1| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Nearside Steering lock stop ineffective |2.1.3| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 2 |
| Front suspension assembly component excessively bent |2.3.1| | 2 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 2 |
| Front position lamp incorrect colour Fitted with blue bulb |1.1.2a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Gradient brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.D1b| | 1 |
| Brake hose damaged | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Brake component has an inadequate repair |3.1.5| | 1 |
| Brake performance not tested |3.3| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake caliper operating mechanism has excessive travel |1.1.16 |e| |i|| | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Brake hose excessively deteriorated | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Centre Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Brake master cylinder defective but brake still operating retaining screw missing (1.1.10 (b) (i)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Riders seat insecure Front Not Attatched |6.2.1a| | 1 |
| Offside Exhaust is leaking and excessively noisey Has Hole In Pipe |7.1.1b| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Brake lever is inoperative |3.1.3c| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear suspension bush excessively deteriorated Engine mounting bushes nearside / offside. |2.4.A2a|i|| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded Rear brake lever arm |3.2.A1h| | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Nearside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Rear suspension bush has excessive free play Engine mounting.|front & rear| |2.4.A2a|i|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Nearside Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Front Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Plate brake test No brake control achieves an efficiency of 30%. |3.3.B2a| | 1 |
| Plate brake test Neither brake control achieves an efficiency of 25% |3.3.B2b| | 1 |
| Brake back plate|s| insecure |3.2.A1j| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |