| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 89 |
| Rear reflector on motorcycle missing |1.4.1| | 30 |
| Registration plate issues | 18 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 8 |
| Front wheel bearings have excessive free play |2.3.5b| | 7 |
| Front wheel bearings are excessively rough |2.3.5b| | 6 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 6 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 4 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 4 |
| Horn not working |1.7.3a| | 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 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 2 |
| Steering damper insecure |2.1.2d| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Front Brake locking device missing |3.2.A1e| | 1 |
| Offside Front Brake locking device missing |3.2.A1e| | 1 |
| Rear Lower Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Offside Throttle operating incorrectly |6.2.1f| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front position lamp deteriorated and function impaired front position lamp inop. |1.1.1b| | 1 |
| Shock absorber has a serious fluid leak front left fork seal |5.3.2 |b|| | 1 |
| Front position lamp does not illuminate immediately when switched on No low beam |1.1.3a| | 1 |
| Horn control not functioning. horn not working |1.7.2b| | 1 |
| Steering linkage has excessive free play |2.2.2| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Motorcycle structure is fractured and structural rigidity is significantly reduced wheel spindle retaining nut |6.1.1 |a| |i|| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Brake lining|s| less than 1.0 mm thick Rear |1.1.13 |a|| | 1 |
| Nearside Front Handlebar fractured |2.1.1b| | 1 |
| Registration plate lamp issues | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front Throttle operating incorrectly throttle cable |6.2.7 |a| |i|| | 1 |
| Central Front Brake hose excessively twisted front break pipe under stress |1.1.12 |b| |ii|| | 1 |
| Front Lower Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Offside Front Upper Brake cable has restricted free movement Cable caught by another. Movement was partially restricted. This has been rectified and now moves freely. |1.1.15 |e|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Headlamp light source and lamp not compatible HID Light system fitted to standard headlight unit |4.1.4 |c|| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Rear Brake component is excessively corroded |3.1.5| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Front Steering damper in such a condition that the steering action is impaired. |2.1.2d| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 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 Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Direction indicator incorrect colour both front indicators |4.4.3 |a|| | 1 |
| Offside Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Brake performance not tested |3.3| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Rear Brake disc|s| insecure |3.2.A1g| | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |