| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 11 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Registration plate lamp issues | 4 |
| Horn not working |1.7.3a| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Indicator switch insecure |1.5.4| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Seat insecure |6.2.1a| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Nearside Handlebar deformed |2.1.1b| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Registration plate issues | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied lever broken (1.1.2 (d)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake performance not tested (1.2.1 (g)) | 1 |
| Front Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Drive chain excessively tight massive tight spot in it (6.1.7 (k) (i)) | 1 |
| Drive chain worn to excess massive tight spot in it (6.1.7 (c) (i)) | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Roller brake test indicates a binding brake rear |3.3.A1a| | 1 |
| Footrest missing rear |6.2.1a| | 1 |
| Brake lever has inadequate reserve travel front |3.1.3b| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Inner Front Brake component has an inadequate repair |3.1.5| | 1 |
| Rear Footrest missing x2 (6.2.12 (a)) | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Direction indicator flashing more than 120 times per minute all |1.5.1c| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam both |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam both |1.2.2a|ii|| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Upper Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Throttle operating incorrectly engine speed rises on full lock |6.2.7 |a| |i|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected engine speed rises when lock to lock |6.2.7 |a| |ii|| | 1 |
| Rear Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Drive chain worn to excess |6.1.7 |c| |i|| | 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 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies Switch failed |1.3.1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Handlebar deformed HITS THE TANK |2.1.1b| | 1 |
| Brake disc|s| excessively scored FRONT |3.2.A1l| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Footrest missing Pillion l/h and r/h. |6.2.1a| | 1 |
| Exhaust mounting missing Rear silencer. |7.1.1c| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak Nearside fork seal burst. |5.3.2 |b|| | 1 |
| Rear Brake lining|s| less than 1.0 mm thick Worn to metal. |1.1.13 |a|| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Steering operation impeded by a fairing Front brake master cylinder hitting inside of fairing - on full L/H lock (2.1.4 (e)) | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level Reservior not level (1.1.10 (d) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak L/H fork seal (5.3.2 (b)) | 1 |
| Fuel system component leaking Fuel leaking from carburettor (6.1.3 (b) (i)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Central Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Offside Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Brake lever pivot excessively worn (1.1.1 (b)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |