| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 15 |
| Registration plate issues | 14 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| 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| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Horn not working |1.7.3a| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Registration plate lamp issues | 2 |
| Direction indicator flashing more than 120 times per minute all |1.5.1c| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake pedal anti-slip provision missing (1.1.2 (c)) | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Central Rear Lower Brake excessively binding |1.2.1 |f|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp with a multiple light source more than 1/2 not functioning (4.3.1 (a) (ii)) | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Service brake excessively fluctuating |1.2.1 |e|| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Vehicle structure is cracked, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Brake hose damaged | 1 |
| Rear Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front position lamp|s| incorrect colour |1.1.A.3e| | 1 |
| Centre Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Rear fog lamp not working |1.3.2b| | 1 |
| Front Brake pedal has insufficient reserve movement |3.3.A.5| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Direction indicator not working all (4.4.1 (a) (ii)) | 1 |
| Hazard warning switch inoperative not fitted (4.4.2 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls lever switch not working (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Rear Brake disc insecure (1.1.14 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Stop lamp not working from front control |4.3.1 |a| |ii|| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Throttle operating incorrectly throttle sticking on |6.2.7 |a| |i|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Brake pedal anti-slip provision loose cover keeps falling off (1.1.2 (c)) | 1 |
| Stop lamp not working Front control (4.3.1 (a) (ii)) | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Pillion seat with a defective supporting structure Bolts loose. |6.2.6 |a| |i|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |