| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 40 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 27 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 18 |
| Registration plate issues | 14 |
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 9 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 9 |
| Nearside Rear Footrest missing |6.2.1a| | 9 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Stop lamp remains on when the brake is released |1.3.1e| | 7 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Fuel cap sealing washer missing |7.2.2c| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 5 |
| Offside Front Direction indicator insecure |1.5.3b| | 5 |
| Offside Rear Footrest missing |6.2.1a| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Headlamp deteriorated and function impaired |1.2.3a| | 5 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Fuel cap missing |7.2.2a| | 4 |
| Rear Footrest missing |6.2.1a| | 4 |
| Registration plate lamp issues | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 3 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Front mudguard insecure |2.3.7| | 3 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 3 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Horn not working |1.7.3a| | 2 |
| Offside Footrest missing |6.2.1a| | 2 |
| Offside Footrest insecure |6.2.1a| | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Direction indicator insecure |1.5.3b| | 2 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Offside Front Footrest missing |6.2.1a| | 2 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Nearside Front Direction indicator insecure |1.5.3b| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Brake lever insecure |3.1.2a| | 2 |
| Front Direction indicator insecure |1.5.3b| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Footrest missing |6.2.1a| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear reflector on motorcycle obscured |1.4.1| | 2 |
| Nearside Rear Footrest insecure |6.2.1a| | 2 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Brake performance not tested |3.3| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies front lever |1.3.1a| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Steering headbearing has excessive free play movment on yoak |2.2.2| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Position lamp switch insecure |1.1.4b| | 1 |
| Fuel tank leaking (6.1.3 (b) (i)) | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake cable excessively corroded |3.2.A1b| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Indicator tell tale not functioning |1.5.2| | 1 |
| Rear Indicator tell tale not functioning |1.5.2| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Brake component cracked and seriously reduced in strength |3.2.A1| | 1 |
| Centre Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Offside Front suspension assembly component excessively bent |2.3.1| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Handlebar handgrip missing |2.1.1c| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Offside Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Offside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Brake hose leaking fluid |3.2.B4| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Offside Front Upper Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering (2.1.2a) | 1 |
| Nearside Front Brake hose fouling (3.2.B3b) | 1 |
| Offside Front Brake hose fouling (3.2.B3b) | 1 |
| Rear Brake hose fouling (3.2.B3b) | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Brake hose is likely to be fouled or trapped by moving parts hanging down not fixed |3.2.B2c| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Footrest missing rear |6.2.1a| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Rear Direction indicators not working o/s inoperative |1.5.1c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on rear light inoperative |1.1.3a| | 1 |
| Front Front shock absorber seal failed and leaking oil fork seals u/s |2.3.3| | 1 |
| Rear Footrest missing o/s |6.2.1a| | 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 |
| Nearside Rear Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Offside Rear Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Brake performance not tested |1.2.1 |g|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Brake hose damaged | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Offside Rear Lower 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 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Footrest missing |6.2.1a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Stop lamp does not illuminate immediately a brake applies Rear brake control 2 |1.3.1a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Rear Brake cable insecure | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp |4.2.3 |b|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Upper Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Lower Footrest insecure |6.2.1a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Drive belt fouling another component |6.2.1d| | 1 |
| Offside Front Footrest missing |6.2.12 |a|| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Nearside Handlebar mounting clamp bolt missing |2.1.1a| | 1 |
| Nearside Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Nearside Front Front suspension assembly component excessively bent |2.3.1| | 1 |
| Brake component cracked and seriously reduced in strength |3.2.A1| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Centre Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Brake lever insecure |3.1.2a| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Centre Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 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 |
| Fuel system component leaking |7.2.1a| | 1 |
| Offside Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Stop lamp remains on when the brake is released |1.3.1e| | 1 |