| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 66 |
| Registration plate issues | 28 |
| Rear reflector on motorcycle missing |1.4.1| | 18 |
| Horn not working |1.7.3a| | 12 |
| 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| | 10 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 8 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| 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 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Nearside Rear Direction indicator not working |1.5.1c| | 5 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Exhaust excessively deteriorated |7.1.1a| | 5 |
| 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 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Parking brake lever has no reserve travel |3.1.6b| | 3 |
| Parking brake: efficiency below requirements |3.7.B.7| | 3 |
| 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)) | 3 |
| Registration plate lamp issues | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| 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 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 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 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Offside Footrest insecure |6.2.1a| | 2 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 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 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Horn not working not working with lights on (7.7 (a) (ii)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Fork yoke insecure |2.2.2 |d| |i|| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Brake hose excessively deteriorated | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Stop lamp not working |1.2.1b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Offside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Rear Rear position lamp insecure |1.1.1c| | 1 |
| Centre Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Brake disc|s| securing bolt|s| missing locking tabs missing front disc |3.2.A1g| | 1 |
| Exhaust is leaking and excessively noisey no baffle fitted to upper pipe |7.1.1b| | 1 |
| Direction indicators flashing more than 120 times per minute all indicators |1.5.1c| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Rear Stop lamp not working when rear brake applied. |4.3.1 |a| |ii|| | 1 |
| Rear Brake component modification unsafe front torque arm bracket retaining locking pin missing |1.1.21 |d| |i|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front mudguard can easily contact any fixed point of the motor bicycle. |2.3.7| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Rear Brake component inadequately mounted rear brake torque arm insecure |1.1.21 |c|| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Lower Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Offside Rear Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Nearside Front Indicator switch defective |1.5.4| | 1 |
| Offside Front Fuel hose leaking |7.2.1a| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Nearside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Centre Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Centre Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Front Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Direction indicator incorrect colour lens holed showing white light |1.5.1b| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Centre Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Front Brake hose fouling |3.2.B3b| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Rear Position lamp missing only center light fitted |4.2.1 |a|| | 1 |
| Nearside Rear Road wheel fixing loose |5.2.1 |a| |i|| | 1 |
| Nearside Rear wheel cylinder has restricted free movement n/s rear wheel cylinder siezed |3.5.1k| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |9.2.1a| | 1 |
| Front Headlamp insecure |4.1.1 |c|| | 1 |
| Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Front position lamp does not illuminate immediately when switched on side light |1.1.3a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Rear Exhaust mounting missing fixing bolt |7.1.1c| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Rear Inner Footrest insecure |6.2.12 |a|| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Motorcycle structure excessively corroded Swinging arm |6.1.1a| | 1 |
| Offside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition Silencer missing and one silencer not connected |8.1.1 |a|| | 1 |
| Offside Front Footrest missing footpeg missing. Replaced with piece of pipe held on with cable ties |6.2.12 |a|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Upper Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Nearside Front Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Offside 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 |
| Rear reflector missing |1.5.1a| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Rear parking brake recording little or no effort | 1 |
| Parking brake is not capable of being maintained in operation by direct mechanical action only |3.1.2| | 1 |
| Nearside Rear position lamp|s| excessively damaged so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Nearside Hydraulic brake cylinder excessively weakened by corrosion |3.6.A.2b| | 1 |
| Offside Hydraulic brake cylinder excessively weakened by corrosion |3.6.A.2b| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Upper Motorcycle structure joining/attachment plate or fastening insecure |6.1.1 |b| |i|| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition |7.1.4| | 1 |
| Brake performance not tested |3.7.A.1| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Hazard warning switch missing |1.4.B.1d| | 1 |
| Rear Rear fog lamp missing |1.3.2a| | 1 |
| Statutory seat belt missing |5.1.1| | 1 |
| Rear Brake pedal has insufficient reserve travel have adjusted (1.1.2 (a)) | 1 |
| Brake master cylinder insecure bolt missing (1.1.10 (c)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Brake lever has insufficient reserve travel parking brake lever (1.1.2 (a)) | 1 |
| Offside Rear Suspension component insecurely attached spring locking device loose (5.3.3 (a) (i)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Front Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Front Brake hose leaking (1.1.12 (c)) | 1 |
| Front Brake hose connection leaking (1.1.12 (c)) | 1 |
| Nearside Front Inner Rear suspension bush has excessive free play swinging arm (2.4.A2a(i)) | 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 Lower Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Rear Lower Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Suspension arm pin or bush excessively worn swing arm has exess movement (5.3.4 (a) (i)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak Left front fork seal leaking fluid (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak Right front fork seal leaking fluid (5.3.2 (b)) | 1 |
| Central Front Wheel alignment incorrect which adversely affects the handling Front wheel out of alignment with top yolk and bars (2.4 (a)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Offside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake lagging in operation (1.2.1 (d)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Brake cable insecure (1.1.15 (c)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Brake pedal so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Central Front Horn not working (7.7 (a)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |