| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 40 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 24 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 20 |
| Horn not working |1.7.3a| | 18 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 15 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 15 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 11 |
| Registration plate lamp issues | 10 |
| Registration plate issues | 10 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 8 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Fuel cap sealing washer missing |7.2.2c| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 7 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 6 |
| Stop lamp remains on when the brake is released |1.3.1e| | 6 |
| Front Brake excessively binding (1.2.1 (f)) | 6 |
| Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 5 |
| Stop lamp remains on when the brakes are released | 4 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 4 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Headlamp switch faulty |1.2.4| | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 3 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 3 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Indicator switch defective |1.5.4| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| All direction indicators not working |4.4.1 |a| |ii|| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Offside Direction indicators not working |1.5.1c| | 2 |
| Rear Brake lever insecure |3.1.2a| | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 2 |
| Indicator switch insecure |1.5.4| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Steering lock stop ineffective |2.1.3| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Handlebar mounting clamp loose |2.1.1a| | 2 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Front brake disc in such a condition that it is seriously weakened | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 2 |
| Offside Rear Position lamp not working (4.2.1 (a)) | 2 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil leaking |2.3.3| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Brake lever cannot be released smoothly stuck on by fairing |pushed a long the bar| |3.1.3d| | 1 |
| Rear Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Central Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Central Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal leaking due to pitted fork leg |5.3.2 |b|| | 1 |
| Central Rear Upper Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Stop lamp does not illuminate immediately a brake applies Front brake light switch is not operational |1.3.1a| | 1 |
| Rear Motorcycle structure excessively damaged mudguard |6.1.1a| | 1 |
| Nearside Front Upper Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Central Front Lower Brake excessively binding |1.2.1 |f|| | 1 |
| Offside Rear Direction indicator incorrect colour Has white bulb not orange. |4.4.3 |a|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak l/h seal leaking. |5.3.2 |b|| | 1 |
| Rear Brake lever insecure Lever mounting{switch}insecure. |1.1.2 |e| |i|| | 1 |
| Handlebar grip insecure to handlebar l/h and r/h grips loose on bar. |2.2.1 |d| |ii|| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Brake lever |6.2.1h| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition pipe holed |8.1.1 |a|| | 1 |
| Nearside Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front wheel bearings are excessively tight |2.3.5b| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Direction indicator not working all offside |1.5.1c| | 1 |
| Offside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Steering lock stop ineffective both ways |2.1.3| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Upper Steering linkage has excessive free play |2.2.2| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front position lamp does not illuminate immediately when switched on new bulb |1.1.3a| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Nearside Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Rear shock absorber insecurely mounted upper mount bolt loose. |2.4.A.3b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Brake lever has inadequate reserve travel front brake lever |3.1.3b| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking rear engine mounting |6.1.1c| | 1 |
| Rear suspension component seized |2.4A2a|ii|| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Handlebar excessively corroded |2.1.1b| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake component modification adversely affecting braking performance TO MUCH MOVEMENT IN REAR BRAKE ARM ,ADJUSTED |1.1.21 |d| |ii|| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Front Handlebar deformed to the extent that steering is affected |2.2.1 |c| |ii|| | 1 |
| Front Indicator switch inoperative |4.4.2 |a| |ii|| | 1 |
| Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Stop lamp does not illuminate immediately a brake applies both |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies on front lever |1.3.1a| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level |1.1.10 |d| |ii|| | 1 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Nearside Inner Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Inner Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Inner Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Steering headbearing has excessive free play notchy steering head bearings |2.2.2| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies r/h lever switch non func |1.3.1a| | 1 |
| Nearside Front Upper Stop lamp remains on when the brake is released l/h lever switch |1.3.1e| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Brake performance not tested |3.3| | 1 |
| Front shock absorber seal failed and leaking oil R/H |2.3.3| | 1 |
| Throttle operating incorrectly not secured to handlebars |6.2.1f| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Brake component defective due to a deliberate modification which significantly reduces the original strength wrong caliper for moped |3.1.5| | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Direction indicators not working both |1.5.1c| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Fuel cap leaking |6.1.3 |b| |i|| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Fuel cap ineffective seal missing (6.1.3 (b) (i)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Nearside Rear Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Rear Motorcycle structure is fractured and structural rigidity is significantly reduced ONE OF THE 3 SUPPORTS FOR THE PIZZA TOP-BOX RACK IS BROKEN (6.1.1 (a) (i)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Stop lamp not working left lever (4.3.1 (a) (ii)) | 1 |
| Front Position lamp missing (4.2.1 (a)) | 1 |
| Front Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Stop lamp not working Rear Control (4.3.1 (a) (ii)) | 1 |
| Suspension component pin or bush excessively worn Engine top mount bars (5.3.4 (a) (i)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Offside Front Suspension component likely to fail Fork Tube Pitted In Travel Area Result In Fork Seal Leaking (5.3.3 (b) (ii)) | 1 |
| Nearside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Fuel cap ineffective NO RUBER SEALING WASHER FITTED TO FUEL CAP (6.1.3 (b) (i)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Fuel cap ineffective Cap seal missing (6.1.3 (b) (i)) | 1 |
| Nearside Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Nearside Brake lever has insufficient reserve travel Rear brake control. (1.1.2 (a)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Wheel more than one fixing missing Wheel spacer (speedo drive) missing allowing the wheel to travel along the spindle. (5.2.1 (a) (ii)) | 1 |
| Rear Wheel fixing loose (single fixing) Suspect wheel fixing nut loose (5.2.1 (a) (ii)) | 1 |
| Pillion seat with a defective supporting structure rear rail insecure (6.2.6 (a) (i)) | 1 |
| Clutch lever positioned so it cannot be readily operated insecure (6.2.7 (b)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Nearside Front Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Direction indicator not working front and rear inoperative. (4.4.1 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected insecure (6.2.7 (a) (ii)) | 1 |
| Headlamp insecure screws missing (4.1.1 (c)) | 1 |