| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 35 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 14 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Horn not working |1.7.3a| | 13 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 8 |
| Registration plate issues | 8 |
| Stop lamp remains on when the brake is released |1.3.1e| | 7 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Riders seat insecure |6.2.1a| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Steering headbearing has excessive free play |2.2.2| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Rear Brake disc|s| cracked |3.2.A1g| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Brake hose damaged | 5 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Direction indicators not working |1.5.1c| | 3 |
| Indicator tell tale not functioning |1.5.2| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Fuel hose leaking |7.2.1a| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Direction indicator not working |1.5.1c| | 3 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 2 |
| Nearside Front Brake component cracked and seriously reduced in strength |3.2.A1| | 2 |
| Nearside Direction indicator not working |1.5.1c| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Indicator tell tale not functioning |1.5.2| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Nearside Fuel system component leaking |7.2.1a| | 1 |
| Offside Rear Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Offside Fuel hose leaking |7.2.1a| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Rear Brake component cracked and seriously reduced in strength |3.2.A1| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Fuel system component insecure |7.2.1b| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Front Sidecar attachment insecure |5.1.1b| | 1 |
| Inner Fuel system component insecure |7.2.1b| | 1 |
| Outer Fuel system component insecure |7.2.1b| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Central Front Horn not working |7.7 |a| |ii|| | 1 |
| Nearside Front Dipswitch does not operate immediately when selected on main beam |4.1.3 |b|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Central Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Central Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Central Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Rear Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Central Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Outer Rear Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Suspension arm pin or bush excessively worn Offside rear swing arm bearings |5.3.4 |a| |i|| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Fuel pipe leaking |6.1.3 |b| |i|| | 1 |
| Offside Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Offside Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Steering damper ineffective |2.1.4 |d| |i|| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Brake hose excessively deteriorated | 1 |
| Centre 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 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Fuel cap sealing washer torn |7.2.2c| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Brake disc|s| cracked both |3.2.A1g| | 1 |
| Brake performance not tested due to front calipers binding on |3.3| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Centre Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Fuel hose leaking |7.2.1a| | 1 |
| Offside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Position lamp adversely affected by the operation of another lamp |4.2.3 |b|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake component is excessively corroded |3.1.5| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Brake linked system has an excessively worn master cylinder pivot. |3.2.B5| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Front Upper Fuel system component insecure |7.2.1b| | 1 |
| Offside Front Upper Fuel system component insecure |7.2.1b| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 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 |
| 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 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake component is fractured |3.1.5| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Headlamp aim beam image kick up to the offside mask fitted
|1.6| | 1 |
| Offside Rear Wheel fixing loose |single fixing| correct torque not available |5.2.1 |a| |ii|| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear wheel bearings have excessive free play (2.4.A.2c) | 1 |
| Fuel cap ineffective seal (6.1.3 (b) (i)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 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 |