| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 31 |
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 11 |
| Registration plate issues | 10 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Horn not working |1.7.3a| | 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| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Offside Rear Direction indicators not working |1.5.1c| | 5 |
| Registration plate lamp issues | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 4 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Exhaust mounting missing |7.1.1c| | 3 |
| Rear reflector on motorcycle obscured |1.4.1| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 3 |
| Headlamp switch faulty |1.2.4| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear Brake lever insecure |3.1.2a| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Offside Footrest insecure |6.2.1a| | 2 |
| Front Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Rear Brake grabbing severely |1.2.1 |c|| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Horn sound not in accordance with requirements (7.7 (c)) | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Lower Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement |6.1.8 |a| |i|| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling to the left |2.4 |a|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp aim beam image kick up to the offside Taped |1.6| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Brake performance not tested due to front brake |3.3| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Fuel system component leaking carburetta |7.2.1a| | 1 |
| Centre Front Exhaust mounting missing |7.1.1c| | 1 |
| Rear 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 |
| Front Horn not working |1.7.3a| | 1 |
| Rear Footrest insecure |6.2.1a| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Front Direction indicator obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Upper Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Inner Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Riders seat insecure |6.2.1a| | 1 |
| Rear Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Headlamp switch faulty no main beam light |1.2.4| | 1 |
| Position lamp switch faulty uabel to stop bike with switch |1.1.4a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies from rear brake |1.3.1a| | 1 |
| Rear Rear shock absorber has inadequate damping effect. both |2.4.A.3b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Headlamp aim headlamp damaged and function impaired headlamp image wrong -bulb refitted |1.2.3a| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Brake lever insecure |1.1.2 |e| |i|| | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Offside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Position lamp switch insecure Right hand switch/throttle housing |4.2.2 |b|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Offside Rear Lower Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Rear suspension movement is excessively stiff NO movement ! |2.4.A.3b| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Centre Front Upper Headlamp at least one does not illuminate on dipped beam Did not work, earth wire was adrift. |1.2.2a|i|| | 1 |
| Rear Brake lever attachment screws missing |3.1.2b| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake lining|s| contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Nearside Front Indicator switch insecure |1.5.4| | 1 |
| Direction indicator not working rear offside indicator not working |1.5.1c| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Centre Rear Rear suspension bush has excessive free play swing arm, engine support |2.4.A2a|i|| | 1 |
| Front Lower Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition no baffles |7.1.2| | 1 |
| Front Front shock absorber seal failed and leaking oil both |2.3.3| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Nearside Brake lever mounting insecure |3.1.2a| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Steering lock stop maladjusted |2.1.3| | 1 |
| Rear wheel rotation likely to be impeded By broken rear mudguard stay. |6.2.1b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Nearside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil o/s |2.3.3| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear |1.3.1a| | 1 |
| Brake disc|s| friction surface contaminated by oil or grease front |3.2.A1k| | 1 |
| Direction indicator incorrect colour both front lens broken |1.5.1b| | 1 |
| Front position lamp does not illuminate immediately when switched on dipped beam |1.1.3a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear suspension bush has excessive free play rear engine mounts |2.4.A2a|i|| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking Free play rear wheel |6.1.1c| | 1 |
| Rear Wheel excessively distorted |5.2.2 |c| |i|| | 1 |
| Offside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Front Footrest insecure |6.2.12 |a|| | 1 |
| Front Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Rear Brake lever excessively corroded |3.2.A1c| | 1 |
| Offside Rear Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Nearside Front Handlebar excessively corroded |2.1.1b| | 1 |
| Offside Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Front Steering lock stop maladjusted |2.1.3| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Direction indicators flashing less than 60 times a minute all indicators |1.5.1c| | 1 |
| Front Front shock absorber seal failed and leaking oil both forks |2.3.3| | 1 |
| Front Front suspension assembly excessive wear or free play in a front suspension component bottom of fork |2.3.4| | 1 |
| Front Front suspension assembly component excessively corroded. both fork legs |2.3.1| | 1 |
| Front Stop lamp not working brake lever switch inoperative |4.3.1 |a| |ii|| | 1 |
| Rear Brake lever has insufficient reserve travel handlebar brake lever touches grip |1.1.2 |a|| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Central Rear Lower Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Suspension arm attachment bracket/mounting insecure |5.3.3 |a| |i|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Wheel excessively distorted |5.2.2 |c| |i|| | 1 |
| Front Wheel spoke excessively loose |5.2.2 |d|| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Rear Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Rear Suspension attachment bracket/mounting insecure |5.3.3 |a| |i|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Rear Brake component insecure torque arm pin missing |1.1.21 |c|| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Suspension component pin or bush excessively worn Engine mounting |5.3.4 |a| |i|| | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Front Lower Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Offside Rear Suspension arm attachment bracket/mounting insecure arm -bolt loose and split pin missing (5.3.3 (a) (i)) | 1 |
| Stop lamp not working front lever switch (4.3.1 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (fork seal) (5.3.2 (b)) | 1 |
| Front Brake disc contaminated contminated with fork oil (1.1.14 (b)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Front Exhaust system insecure (6.1.2 (a)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Offside Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front All direction indicators not working FRONT INDICATORS DO NOT FLASH (4.4.1 (a) (ii)) | 1 |
| Rear All direction indicators not working REAR INDICATORS NOT FLASHING (4.4.1 (a) (ii)) | 1 |
| Nearside Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Brake lever has insufficient reserve travel lever can be pulled to bars and did not lock rollers on test (1.1.2 (a)) | 1 |
| Rear Brake lever so insecure that the brake cannot be readily applied pivot bolt hanging out and lock nut missing (1.1.2 (e) (ii)) | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement engine mount bushes has excessive free play (6.1.8 (a) (i)) | 1 |
| Rear Suspension component pin or bush excessively worn top shock mount has excessive free play (5.3.4 (a) (i)) | 1 |
| Front Wheel more than one fixing loose (5.2.1 (a) (ii)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure centre stand insecure can foul rear wheel (6.1.1 (b) (i)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Offside Front Brake lever excessively worn Lever Broken (1.1.15 (b)) | 1 |
| Front Position lamp switch insecure (4.2.2 (b)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Rear Drive chain sprocket so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Suspension arm attachment bracket/mounting insecure swing arm main bolt head missing so loose (5.3.3 (a) (i)) | 1 |
| Front Brake component insecure caliper pads mounting pin loose (1.1.21 (c)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected movement in handle bars (2.2.2 (f) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |