| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 26 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 18 |
| Horn not working |1.7.3a| | 9 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 4 |
| Registration plate issues | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Registration plate lamp issues | 3 |
| Handlebar mounting clamp loose |2.1.1a| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Rear reflector missing |1.5.1a| | 3 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear brake binding | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Parking brake: efficiency below requirements |3.7.B.7| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Headlamp insecure |4.1.1 |c|| | 2 |
| Offside Rear reflector missing |1.5.1a| | 2 |
| Nearside Rear reflector missing |1.5.1a| | 2 |
| Rear Brake component is excessively corroded |3.1.5| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Offside Stop lamp not working |1.2.1b| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Parking brake efficiency below requirements |3.7.B.7| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear Stop lamp missing |1.2.1a| | 1 |
| Centre Rear Rear fog lamp missing |1.3.2a| | 1 |
| Brake pedal has excessive side movement indicating a badly worn bearing or pivot |3.3.A.1d| | 1 |
| Centre Exhaust mounting missing |7.1.1b| | 1 |
| Front wheel has a missing wheel stud|s| |4.2.3a| | 1 |
| Nearside Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Direction indicator insecure |1.5.3b| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Brake lever not releasing correctly and functionality of brakes affected causing front brake to bind |1.1.2 |b| |ii|| | 1 |
| Stop lamp|s| not working via control 1 |4.3.1 |a| |ii|| | 1 |
| Vehicle structure has a fracture which is likely to adversely affect braking or steering swing arm assembly |6.1.1 |a| |ii|| | 1 |
| Nearside Rear Rear reflector missing |1.5.1a| | 1 |
| Offside Rear Rear reflector missing |1.5.1a| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Handlebar mounting clamp loose Both |2.1.1a| | 1 |
| Offside Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Offside Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Offside Front Direction indicator flashing less than 60 times a minute |1.4.A.2g| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.4.A.2g| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Hazard warning switch missing |1.4.B.1d| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Nearside Front position lamp|s| missing |1.1.A.3a| | 1 |
| Offside Front position lamp|s| missing |1.1.A.3a| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Parking brake efficiency below requirements |3.7.C.1b| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 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 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Rear fog lamp tell tale not working |1.3.1b| | 1 |
| All position lamps not working |4.2.1 |a|| | 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 |
| Nearside Front Brake component is excessively corroded |3.1.5| | 1 |
| Offside Front Brake component is excessively corroded |3.1.5| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Nearside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Stop lamp not working Rear brake switch not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Stop lamp lens defective such that the emitted light is adversely affected |4.3.1 |b| |ii|| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear brake |1.3.1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Centre Front Fuel tank leaking |7.2.1a| | 1 |
| Offside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Vehicle structure is fractured and structural rigidity is significantly reduced rear frame atachment |6.1.1 |a| |i|| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Steering headbearing has excessive free play |2.2.2| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Steering headbearing has excessive free play |9.2.4| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |9.2.1a| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |9.2.1a| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.4.A.2g| | 1 |
| Nearside Rear Direction indicator flashing less than 60 times a minute |1.4.A.2g| | 1 |
| Nearside Direction indicator not working |1.4.A.2c| | 1 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 1 |
| Brake pedal actuating linkage has excessive wear in the eye of the clevis joint |3.3.A.1g| | 1 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Rear parking brake recording little or no effort | 1 |
| Offside Front front brake recording little or no effort |3.7.B.5a| | 1 |
| Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Front Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Hazard warning lamps operated by more than one switch |1.4.B.1c| | 1 |
| Centre Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Rear Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Stop lamp(s) not working for front brake (4.3.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Offside Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced Swing-arm underside (6.1.1 (c) (i)) | 1 |
| Rear Brake component insecure Brake arm fixing insecure (1.1.21 (c)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Rear Suspension arm corroded and seriously weakened Swing arm (5.3.3 (b) (i)) | 1 |
| Throttle operating incorrectly Throttle revving up on lock (6.2.7 (a) (i)) | 1 |