| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 21 |
| Headlamp aim out of alignment | 15 |
| Registration plate issues | 11 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Brake disc|s| cracked |3.2.A1g| | 4 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Horn not working |1.7.3a| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Direction indicator not working |1.5.1c| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Direction indicator flashing more than 120 times per minute |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 |
| Nearside Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Offside Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Nearside Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Front Upper Horn not working |1.7.3a| | 1 |
| Centre Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Fuel pipe union leaking (6.1.3 (b) (i)) | 1 |
| Offside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Front Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Horn not working on lock to lock stops working |1.7.3a| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on number plate light |1.1.3a| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Centre Rear Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Centre Front Upper Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Upper Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Rear Upper Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Nearside Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Front Stop lamp switch with a delay in operation not working |4.3.2 |a| |ii|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Brake excessively binding FRONT |1.2.1 |f|| | 1 |
| Stop lamp not working FRONT BRAKE |4.3.1 |a| |ii|| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Centre Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Offside Rear Lower Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Brake hose excessively deteriorated | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Offside Front Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |