| Most common failures | No# failures |
|---|
| Registration plate issues | 41 |
| Headlamp aim out of alignment | 25 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Offside Rear 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| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| 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| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Offside Rear Direction indicators not working |1.5.1c| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Horn not working |1.7.3a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Offside Front 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 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake cylinder insecurely mounted |3.2.B1a| | 1 |
| Offside Front Footrest missing |6.2.1a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Brake hose damaged | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake operation |1.3.1a| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts at frame lug |3.2.B2c| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Fuel system component insecure tank |7.2.1b| | 1 |
| Handlebar handgrip not secure to handlebars. x2 |2.1.1c| | 1 |
| Centre Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear Brake component leaking fluid |3.2.B4| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| An item not tested |Manual| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake grabbing severely |1.2.1 |c|| | 1 |
| Brake performance not tested |1.2.1 |g|| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Brake component modification adversely affecting braking performance brake caliper fouling when brake is applied |1.1.21 |d| |ii|| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Steering linkage has excessive free play |2.2.2| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Stop lamp not working from front control |4.3.1 |a| |ii|| | 1 |
| Fork yoke insecure top nut loose |2.2.2 |d| |i|| | 1 |
| Rear 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 Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear Wheel spoke cracked. |4.2.1b| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Stop lamp not working Off of both brake appliances (4.3.1 (a) (ii)) | 1 |
| Fuel tank leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Rear Wheel spoke cracked (5.2.2 (d)) | 1 |
| Fuel system component leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Wheel spindle locking device missing split pin (5.2.1 (d)) | 1 |