| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 16 |
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Horn not working |1.7.3a| | 9 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 8 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 8 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 4 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Rear Footrest missing |6.2.1a| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Registration plate issues | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 2 |
| Offside Steering lock stop ineffective |2.1.3| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| 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| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Rear Brake disc|s| insecure |3.2.A1g| | 1 |
| Front Front position lamp missing |1.1.1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Brake locking device missing |3.2.A1e| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| An item not tested |Manual| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Brake disc|s| has excessive run out flat spot and damage |3.2.A1m| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Front Lower Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Rear Lower Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Brake reaction bracket insecure |3.2.A1j| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Throttle operating incorrectly full lock |6.2.7 |a| |i|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Front suspension assembly component loose |2.3.1| | 1 |
| Nearside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Front Front suspension assembly component missing |2.3.1| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Horn not working (1.7.3a) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Brake pedal attachment screws loose |3.1.2b| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Offside Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front position lamp does not illuminate immediately when switched on blown bulb, replaced. |1.1.3a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Nearside Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Shock absorber has negligible damping effect rear unit lack or no damping (5.3.2 (b)) | 1 |
| Valve stem seriously damaged front valve split (5.2.3 (j)) | 1 |
| Handlebar grip insecure to handlebar n/s grip insecure (2.2.1 (d) (ii)) | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Central Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake pipe excessively chafed |3.2.B2a| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Nearside Rear Drive chain excessively tight |6.2.1d| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear reflector on motorcycle insecure |1.4.2c| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |