| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Headlamp aim out of alignment | 6 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Horn not working |1.7.3a| | 3 |
| Registration plate lamp issues | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Registration plate issues | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Direction indicators flashing more than 120 times per minute all |1.5.1c| | 1 |
| Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Nearside Rear Lower Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 1 |
| Rear Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride chain adjusters loose |6.2.1h| | 1 |
| Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Footrest insecure |6.2.12 |a|| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Front Throttle operating incorrectly Throttle assembly loose on bars |6.2.1f| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Front Stop lamp does not illuminate immediately a brake applies stop light does not illuminate when front lever is applied |1.3.1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Rear Direction indicator incorrect colour |lens missing | |1.5.1b| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies when front brake applied |1.3.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling n/s| 0mm| o/s |30mm| |2.5.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering n/s |0mm| o/s |30mm| |2.5.1| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Stop lamp not working when front brake lever applied |4.3.1 |a| |ii|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Drive chain sprocket excessively loose sprocket securing bolts not through loc- nuts |6.1.7 |c| |i|| | 1 |
| Throttle operating incorrectly not self returning |6.2.7 |a| |i|| | 1 |
| Offside Front Position lamp switch insecure |4.2.2 |b|| | 1 |
| Rear suspension bearing has excessive free play excessive free play on lower link unit |2.4.A2a|i|| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Steering lock stop missing |2.1.3| | 1 |
| Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Throttle operating incorrectly Damaged, Operating incorrectly |6.2.7 |a| |i|| | 1 |
| All direction indicators not working Insecure, loose |4.4.1 |a| |ii|| | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock Steering stop missing from frame |2.1.4 |a|| | 1 |
| Fuel tank insecure |6.1.3 |a| |i|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Front Footrest insecure |6.2.12 |a|| | 1 |
| Offside Footrest insecure |6.2.12 |a|| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired |5.1.3 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 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 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Central Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Central Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear suspension bush has excessive free play shocker btm pivot assy |2.4.A2a|i|| | 1 |
| Front wheel bearings have excessive free play both side front wheel bearings freeplay |2.3.5b| | 1 |
| Rear Front wheel bearings have excessive free play both side rear wheel bearings have free play |2.3.5b| | 1 |
| Nearside Front Roller brake test indicates a severely grabbing brake brake grabbing |3.3.A1b| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort brake not grabbing in proportion to lever pressure |3.3.A1c| | 1 |
| Nearside Rear Drive chain excessively loose drive chain loose and has tight links |6.2.1d| | 1 |
| Wheel alignment incorrect which adversely affects the handling front and rear wheel out of line |2.5.1| | 1 |