| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 26 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 24 |
| Registration plate lamp issues | 22 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 19 |
| Registration plate issues | 14 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Front Brake excessively binding (1.2.1 (f)) | 8 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 7 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Stop lamp remains on when the brakes are released | 5 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Front Position lamp not working (4.2.1 (a)) | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 3 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Nearside Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 3 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Offside Front Position lamp not working (4.2.1 (a)) | 3 |
| Front brake disc in such a condition that it is seriously weakened | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Front Brake disc fractured (1.1.14 (a) (ii)) | 2 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Indicator switch inoperative contacts inside were poor and not making a contact all the time and only if held in position (4.4.2 (a) (ii)) | 1 |
| Headlamp aim headlamp deteriorated and function impaired no beam pattern on dip beam |1.2.3a| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Brake caliper insecurely mounted and braking performance affected |1.1.16 |c| |ii|| | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp Brake light stuck on. unable to check rear position lamp (4.2.3 (b)) | 1 |
| Steering headbearing has excessive wear or free play excessive free play in steering head bearings |2.2.2 |f| |i|| | 1 |
| Rear Pillion seat with a defective supporting structure pillion grab rail insecure |6.2.6 |a| |i|| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Steering linkage has excessive free play |2.2.2| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Stop lamp not working control one( front brake) (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working control 2 (rear brake) (4.3.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Forks fractured (2.2.2 (d) (i)) | 1 |
| Front Brake disc contaminated oil from fork leg. (1.1.14 (b)) | 1 |
| Front Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort disc warped (1.2.1 (e)) | 1 |
| Front suspension assembly component excessively bent |2.3.1| | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Offside Rear Exhaust silencer insecure secured. (8.1.1 (b) (i)) | 1 |
| Front Stop lamp switch with a delay in operation replaced switch. (4.3.2 (a) (ii)) | 1 |
| Offside Front Direction indicator obscured |1.5.1a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies control |1.3.1a| | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake caliper damaged and braking performance affected (1.1.16 (a) (ii)) | 1 |
| Front Brake caliper damaged (1.1.16 (a) (i)) | 1 |
| Front Brake fluid contaminated |1.8 |a|| | 1 |
| Rear Brake fluid contaminated |1.8 |a|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Brake lever mounting insecure |3.1.2a| | 1 |
| Rear Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Fuel cap ineffective NO LOCK (6.1.3 (b) (i)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Rear Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Nearside Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Central Front Exhaust has a major leak of exhaust gases HOLE (6.1.2 (a)) | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake | Right lever| |1.3.1a| | 1 |
| Front Brake component leaking fluid |3.2.B4| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear wheel has a missing wheel nut|s| |4.2.3a| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Centre Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Centre Rear Stop lamp insecure |1.3.3b| | 1 |
| Centre Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Rear Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Nearside Front Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Stop lamp not working Rear brake switch |4.3.1 |a| |ii|| | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Rear Rear shock absorber insecurely mounted (2.4.A.3b) | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 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 Headlamp aim not tested |1.6| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Rear Lower Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Offside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Decelerometer brake test no brake control achieves an efficiency of 30% |3.3.E1a| | 1 |
| Decelerometer brake test neither brake control achieves an efficiency of 25% |3.3.E1c| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Nearside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Motorcycle structure joining/attachment plate or fastening insecure panels (6.1.1 (b) (i)) | 1 |
| Offside Motorcycle structure inadequately repaired such that structural rigidity is significantly reduced (6.1.1 (d) (i)) | 1 |
| Nearside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Headlamp aim not tested |4.1.2 |b|| | 1 |
| Central Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Brake disc contaminated fork oil (1.1.14 (b)) | 1 |
| Steering operation impeded by a fairing to right hand lock (2.1.4 (e)) | 1 |
| Motorcycle structure has a fracture which is likely to adversely affect braking or steering right hand steering stop missing (6.1.1 (a) (ii)) | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 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 |