| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 23 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 22 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 19 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 12 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Registration plate issues | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 8 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Horn not working |1.7.3a| | 6 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Front Brake excessively binding |1.2.1 |f|| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Handlebar mounting clamp loose |2.1.1a| | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Front An item not tested |Manual| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Offside Rear Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Brake hose excessively deteriorated | 2 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear parking brake recording little or no effort | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Offside Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Fairing insecure and likely to impede the steering |2.1.2e| | 2 |
| Rear Brake excessively binding |1.2.1 |f|| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Nearside Front Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| Nearside Rear Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear Axle insecure `U` bolts loose |5.1.1 |b| |i|| | 1 |
| Brake insecure park brake lever swivel mounting lock nut loose |1.1.21 |c|| | 1 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 1 |
| Brake damaged to the extent that braking performance is affected front brake binding |1.1.21 |a| |ii|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Stop lamp(s) not working not working with foot brake (4.3.1 (a) (ii)) | 1 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 1 |
| Offside Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake pipe union leaking fluid |3.2.B4| | 1 |
| Front Brake hose which buldges |3.2.B4| | 1 |
| Centre Motorcycle structure excessively corroded at frame above centre stand mounting |6.1.1a| | 1 |
| Nearside Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Offside Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen incorrect |4.1.2 |a|| | 1 |
| Rear brake application uneven | 1 |
| Rear Mechanical brake component has restricted free movement | 1 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 1 |
| Rear Trikes, quads or pre-68 vehicles, service brake efficiency below requirements no reserve on pedal |3.7.B.7| | 1 |
| Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Nearside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Front wheel insecure |4.2.3b| | 1 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Front position lamp|s| missing |1.1.A.3a| | 1 |
| Offside Front position lamp|s| missing |1.1.A.3a| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Sidecar wheel bearings have excessive free play |5.2.3c| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Decelerometer brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Rear Upper Direction indicator not working O/S rear indicator not working (Bulb changed) (4.4.1 (a) (ii)) | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 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 |
| Nearside Front Lower Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced frame (6.1.1 (c) (i)) | 1 |
| Horn not working |1.6.2a| | 1 |
| Nearside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Brake disc|s| friction surface contaminated by oil or grease oil from forks on disc |3.2.A1k| | 1 |
| Front shock absorber seal failed and leaking oil r/h fork seal has failed and leaking oil |2.3.3| | 1 |
| Headlamp aim headlamp deteriorated and function impaired upside down lens |1.2.3a| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Offside Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Offside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure FENDER (6.1.1 (b) (i)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure RACK (6.1.1 (b) (i)) | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Front shock absorber seal failed and leaking oil fork seal |2.3.3| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Indicator tell tale not operating correctly |1.5.2| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Nearside Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Nearside Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Brake component damaged and seriously reduced in strength |3.2.A1| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Offside Exhaust mounting missing |7.1.1c| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Stop lamp light intensity significantly reduced |4.3.3 |a| |ii|| | 1 |
| Throttle operating incorrectly not returning & no free play in cables |6.2.7 |a| |i|| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Nearside Rear Lower Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Sidecar direction indicator not working |1.5.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride rear axle nut split pin missing |6.2.1h| | 1 |
| Nearside Front Lower Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Nearside Rear Brake cable has wires broken and is significantly weakened |3.5.1b| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Rear Rear reflector missing |1.5.1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Lower Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced frame rail at engine mount (6.1.1 (c) (i)) | 1 |
| Nearside Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Wheel bearing has excessive play Rear (5.1.3 (a) (i)) | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Front Brake cylinder operating mechanism has excessive travel |1.1.16 |e| |i|| | 1 |
| Rear Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Offside Front Brake hose excessively twisted |3.2.B3a| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| Plate brake test No brake control achieves an efficiency of 30%. |3.3.B2a| | 1 |
| Plate brake test Neither brake control achieves an efficiency of 25% |3.3.B2b| | 1 |
| Nearside Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear An item not tested |Manual| | 1 |
| Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Nearside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Offside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Hydraulic brake calliper leaking |1.1.16 |b| |i|| | 1 |
| Brake fluid significantly below minimum mark |1.1.10 |d| |ii|| | 1 |
| Front front brake binding |3.7.B.1| | 1 |
| Front Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Front All direction indicators obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Rear All direction indicators obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |