| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 26 |
| Registration plate lamp issues | 11 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Nearside Rear Footrest missing |6.2.1a| | 7 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 6 |
| Stop lamp remains on when the brakes are released | 5 |
| Offside Rear Footrest missing |6.2.1a| | 5 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 5 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 4 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 4 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| All position lamps not working (4.2.1 (a)) | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 3 |
| Riders seat insecure (6.2.5 (a) (ii)) | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Rear Footrest missing (6.2.12 (a)) | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 3 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 2 |
| Rear Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Brake caliper|s| insecure |3.2.A1j| | 2 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Offside Handlebar deformed |2.1.1b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Offside Rear Footrest missing (6.2.12 (a)) | 2 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Rear Wheel bearing play so excessive that directional control is impaired |5.1.3 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort pumping brake level (1.2.1 (e)) | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies Brake lamp does not iluminate with front application |1.3.1a| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Horn not working Horn not working |1.7.3a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies Brake lamp does not iluminate with front brake application |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies front and rear stop lamps |1.3.1a| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Rear Footrest missing Pillion |6.2.1a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Nearside Front Footrest insecure s/pin missing (6.2.12 (a)) | 1 |
| Upper Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Stop lamp does not illuminate immediately a brake applies foot brake |1.3.1a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front suspension has excessive stiffness in the suspension movement. Dampers set to tight, no movement |2.3.6b| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Lower Suspension component ball joint excessively worn |5.3.4 |a| |i|| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Stop lamp switch with a delay in operation Switch replaced (4.3.2 (a) (ii)) | 1 |
| Front Brake fluid reservoir fluid not visible Overfilled with fluid, set to correct level (1.1.10 (d) (iii)) | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Central Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Exhaust is leaking and excessively noisey manifold |7.1.1b| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Rear suspension bush has excessive free play bell crank |2.4.A2a|i|| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Lower Rear mono-shock pivot excessively worn all |2.4.B.4| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded brake calliper |3.2.A1h| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear Rear mono-shock insecure mounting point snapped |2.4.B.4| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Brake performance not tested DUE TO REAR CALIPER |3.3| | 1 |
| Rear Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Footrest missing Pillion (6.2.12 (a)) | 1 |
| Rear Brake caliper inadequately mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Steering headbearing has excessive free play steering head bearings worn to excess
|2.2.2| | 1 |
| Rear Brake component worn and seriously reduced in strength rear brake caliper pivots worn to excess |3.2.A1| | 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 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Stop lamp not working off hand control (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Offside Front Brake lever insecure |3.1.2a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Footrest missing Pivot seized, unusable. |6.2.1a| | 1 |
| Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Horn control defective |1.7.2a| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Lower Suspension component pin or bush excessively worn shock absorber linkage (5.3.4 (a) (i)) | 1 |
| Fork yoke modification unsafe top bolt missing |2.2.2 |e|| | 1 |
| Offside Footrest insecure |6.2.12 |a|| | 1 |
| Rear Drive chain sprocket so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Central Upper Front suspension assembly component loose |2.3.1| | 1 |
| Fork yoke insecure |2.2.2 |d| |i|| | 1 |
| Rear mono-shock insecure |2.4.B.4| | 1 |
| Rear Suspension component mounting modified so the suspension is likely to fail other components (5.3.3 (c) (ii)) | 1 |
| Rear Suspension component mounting modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Rear Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Registration plate issues | 1 |
| Rear All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front position lamp incorrect colour blue |1.1.2a| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Front Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded bracket bend pin bent |3.2.A1h| | 1 |
| Front Steering lock stop maladjusted handle bar |2.1.3| | 1 |
| Front Brake lever is so short that the brake cannot be readily applied Lever broken (1.1.2 (d)) | 1 |
| Brake master cylinder reservoir cap missing Reservoir missing (1.1.10 (e)) | 1 |
| Rear Brake pedal pivot excessively worn (1.1.1 (b)) | 1 |
| Offside Front Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Stop lamp does not emit a steady light Front brake |1.3.1b| | 1 |
| Rear Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Rear Brake caliper insecure and pivot worn |1.1.16 |c| |i|| | 1 |
| Drive chain excessively tight, so that it is likely to fail |6.1.7 |k| |ii|| | 1 |
| Chain guard insecure |6.1.7 |i|| | 1 |
| Rear Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Nearside Front Footrest insecure |6.2.12 |a|| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Fuel system component leaking |7.2.1a| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Front Lower Wheel spindle or securing nut|s| so insecure that wheel security or steering control is adversely affected wheel nut missing. |5.2.1 |c| |ii|| | 1 |
| Rear Position lamp not working Number plate light not working. |4.2.1 |a|| | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Clutch lever shortened so it cannot be readily operated (6.2.7 (b)) | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake performance not tested REAR CALIPER SEVERELY WORN AND CAUSING BACK WHEEL TO LOCK.
THIS IS VERY DANGEROUS AND SHOULD NOT BE RIDDEN AWAY. (1.2.1 (g)) | 1 |
| Rear Brake caliper damaged and braking performance affected (1.1.16 (a) (ii)) | 1 |
| Rear Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort 50kg run out on front brakes |3.3.A1d| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Front Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Brake pedal is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Steering linkage locking device missing front hub pin |2.1.3 |d|| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Drive chain worn to excess links seized (6.1.7 (c) (i)) | 1 |
| Rear reflector missing fitted behind number plate and not visible |4.8.2 |a| |ii|| | 1 |
| Offside Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| 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 |
| Riders seat insecure |6.2.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear switch inop |1.3.1a| | 1 |
| Brake linkage clevis joint excessively worn pedal |3.2.A1d| | 1 |
| Horn missing |1.7.1| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Brake performance unable to be tested REAR BRAKE DUE TO CYLINDER INSECURE (1.2.1 (g)) | 1 |
| Rear Brake cylinder insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Rear Drive chain sprocket carrier worn to excess drive bushes |6.2.1e| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride rear drive sprocket insecure |6.2.1h| | 1 |
| Front suspension has inadequate damping effect. sticks in the down position |2.3.6c| | 1 |
| Stop lamp does not illuminate immediately a brake applies via rear brake |1.3.1a| | 1 |
| Rear suspension bearing has excessive free play lower linkage |2.4.A2a|i|| | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Rear Suspension arm mounting has an unsafe modification locking device missing and possibly incorrect bolt fitted - mono-link (5.3.3 (c) (i)) | 1 |
| Front Brake lever has insufficient reserve travel Brake spongey lever pulls back to handlebars (1.1.2 (a)) | 1 |
| Offside Front Footrest insecure Mounting bolt missing (6.2.12 (a)) | 1 |
| Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Lower Shock absorber insecurely attached Bolt and nut loose (5.3.2 (a) (i)) | 1 |
| Rear Brake caliper insecure Both mounting bolt loose (1.1.16 (c) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Brake component insecure reservoir (1.1.21 (c)) | 1 |
| Headlamp insecure loose on pivot (4.1.1 (c)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Stop lamp switch with a delay in operation control 2 rear brake pedal (4.3.2 (a) (ii)) | 1 |
| Offside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Shock absorber insecurely attached Both forks less than 50% through top yoke (5.3.2 (a) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Suspension arm attachment bracket/mounting insecure Shock linkage mount bolt loose (5.3.3 (a) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn Suspension linkage pivot (5.3.4 (a) (i)) | 1 |
| Drive chain sprocket excessively loose Rear Sprocket bolts loose (6.1.7 (c) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Footrest missing BOTH REARS (6.2.12 (a)) | 1 |
| Handlebar restricted in free movement from lock to lock lefthand lock unachievable (2.1.4 (c)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Stop lamp switch with a delay in operation rear light goes out when brake pressed fully (4.3.2 (a) (ii)) | 1 |