| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 16 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 13 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 10 |
| Steering headbearing has excessive free play |2.2.2| | 10 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 8 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| 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 Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Horn not working |1.7.3a| | 2 |
| Brake hose damaged | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Offside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| 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)) | 2 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Offside Rear Rear shock absorber insecurely mounted rear shock missing mounting points broken off |2.4.A.3b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Rear suspension bush has excessive free play engine mounting |2.4.A2a|i|| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering wheel and handle bars |2.5.1| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Lower Shock absorber insecurely attached |5.3.2 |a| |i|| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected revs up when steering turned. (6.2.7 (a) (ii)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Brake hose excessively damaged (1.1.12 (b) (ii)) | 1 |
| Rear Suspension component pin or bush excessively worn engine mounts. (5.3.4 (a) (i)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Brake performance not tested |3.3| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Steering linkage component insecure loose (2.1.3 (a) (i)) | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Upper Rear suspension bush has excessive free play shock absorber |2.4.A2a|i|| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Rear Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Upper Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Nearside Rear All direction indicators incorrect colour |4.4.3 |a|| | 1 |
| Offside Front All direction indicators incorrect colour |4.4.3 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Motorcycle structure cracked rear frame section at pivot piont |6.1.1a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Steering headbearing has excessive wear or free play top head bearings very loose. |2.2.2 |f| |i|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Registration plate issues | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear suspension bush has excessive free play Engine mount |2.4.A2a|i|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Steering operation impeded by a fairing loose causing steering and headlamp problems (2.1.4 (e)) | 1 |
| Offside Rear Suspension arm attachment bracket/mounting insecure bolts missing (5.3.3 (a) (i)) | 1 |
| Rear Brake grabbing severely and sticking on (1.2.1 (c)) | 1 |
| Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Fuel cap ineffective fuel cap seal ineffective |6.1.3 |b| |i|| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Brake lever is inoperative |3.1.3c| | 1 |
| Nearside Brake lever insecure |3.1.2a| | 1 |
| Nearside Front Indicator switch defective |1.5.4| | 1 |
| Offside Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Rear Upper Rear shock absorber insecurely mounted bush |2.4.A.3b| | 1 |