| Most common failures | No# failures |
|---|
| Registration plate issues | 34 |
| Headlamp aim out of alignment | 28 |
| Rear reflector on motorcycle missing |1.4.1| | 28 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 20 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Headlamp aim beam image kick up to the offside |1.6| | 12 |
| Horn not working |1.7.3a| | 11 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 9 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 7 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 7 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 7 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| 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| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 6 |
| Front wheel bearings are excessively rough |2.3.5b| | 6 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Direction indicators not working |1.5.1c| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Nearside Front Footrest insecure |6.2.1a| | 5 |
| Registration plate lamp issues | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Drive chain excessively tight |6.2.1d| | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 4 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear reflector on motorcycle insecure |1.4.2c| | 2 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Brake component cracked and seriously reduced in strength |3.2.A1| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Offside Footrest insecure |6.2.1a| | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Offside Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Offside Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| All direction indicators missing |4.4.1 |a| |ii|| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| 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| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Nearside Footrest insecure |6.2.1a| | 2 |
| Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Headlamp switch insecure |1.2.4| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Offside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Brake performance not tested |1.2.1 |g|| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Valve stem seriously misaligned |5.2.3 |j|| | 1 |
| Brake lever attachment screws missing |3.1.2b| | 1 |
| Centre Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Front position lamp insecure |1.1.1c| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Steering lock stop maladjusted |2.1.3| | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Nearside Front position lamp insecure |1.1.1c| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Steering damper in such a condition that the steering action is impaired. |2.1.2d| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Footrest insecure l/h front |6.2.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies front |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear |1.3.1a| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Brake hose excessively deteriorated | 1 |
| Offside Brake component cracked and seriously reduced in strength |3.2.A1| | 1 |
| Nearside Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Rear Brake performance not tested stuck |3.3| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Nearside Front Footrest insecure |6.2.12 |a|| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Brake hose damaged | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Nearside Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Offside Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Position lamp likely to become detached |4.2.1 |c| |ii|| | 1 |
| Offside Footrest insecure |6.2.12 |a|| | 1 |
| Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear reflector on motorcycle missing replace |1.4.1| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Upper Front suspension assembly component loose |2.3.1| | 1 |
| Central Front Roller brake test indicates a binding brake 15 kgf bind recorded |3.3.A1a| | 1 |
| Nearside Front Direction indicator not working light staying on not flashing |1.5.1c| | 1 |
| Offside Front Direction indicator not working light staying on not flashing |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working light staying on not flashing |1.5.1c| | 1 |
| Offside Rear Direction indicator not working light staying on not flashing |1.5.1c| | 1 |
| Rear Direction indicator obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride wheel |6.2.1h| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Rear Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Brake locking device insecure |3.2.A1e| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Roller brake test brake efficiency less than 27.5% overall |1.2.2 |a| |ii|| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies Brake control |1.3.1a| | 1 |
| Stop lamp not working WHEN REAR BRAKE IS APPLIED |4.3.1 |a| |ii|| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Indicator switch inoperative |4.4.2 |a| |ii|| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Exhaust mounting missing |7.1.1c| | 1 |
| Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear Lower Brake linked system has a seized caliper pivot. |3.2.B5| | 1 |
| Offside Front Lower Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Nearside Front Upper Horn control defective |1.7.2a| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear reflector on motorcycle deteriorated and function impaired |1.4.2a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride frame bolt missing |6.2.1h| | 1 |
| Rear Brake component leaking fluid |3.2.B4| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Nearside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Plate brake test No brake control achieves an efficiency of 30%. |3.3.B2a| | 1 |
| Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure lower fairing. |6.1.1 |b| |i|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Central Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Central Rear reflector on motorcycle missing |1.4.1| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Headlamp switch faulty |1.2.4| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Wheel fixing missing (single fixing) split pin missing (5.2.1 (a) (ii)) | 1 |
| Rear Valve stem seriously damaged Perrished & split (5.2.3 (j)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Throttle operating incorrectly throttle not returning/revving on right hand lock (6.2.7 (a) (i)) | 1 |
| Central Rear Stop lamp does not illuminate by the operation of both brake controls brake light not functioning from rear brake pedal (4.3.2 (a) (iii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 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 Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear 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 |
| Front Shock absorber has a serious fluid leak Both sides. (5.3.2 (b)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Riders seat missing (6.2.5 (a) (ii)) | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Fuel cap ineffective cant open (6.1.3 (b) (i)) | 1 |
| Offside Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake master cylinder defective but brake still operating pin missing (1.1.10 (b) (i)) | 1 |
| Rear Brake drum significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Engine mounting/bracket missing bolt missing (6.1.8 (a) (ii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |