| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 22 |
| Registration plate lamp issues | 14 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 13 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 13 |
| Rear reflector missing (4.8.2 (a) (ii)) | 13 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 12 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 11 |
| Rear Position lamp not working (4.2.1 (a)) | 11 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 10 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 9 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 9 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 8 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 6 |
| Horn not working (7.7 (a)) | 6 |
| Rear reflector missing |4.8.2 |a| |ii|| | 6 |
| Horn not working (7.7 (a) (ii)) | 6 |
| Nearside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 6 |
| Offside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 5 |
| All direction indicators not working (4.4.1 (a) (ii)) | 5 |
| Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 5 |
| Riders seat insecure (6.2.5 (a) (ii)) | 5 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Registration plate issues | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 2 |
| Front Brake disc contaminated (1.1.14 (b)) | 2 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 2 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Headlamp aim not tested (4.1.2 (b)) | 2 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 2 |
| Exhaust system insecure (6.1.2 (a)) | 2 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 2 |
| Offside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Front Headlamp aim not tested |4.1.2 |b|| | 2 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Nearside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Front Brake lagging in operation (1.2.1 (d)) | 1 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Hydraulic brake calliper inadequately mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Exhaust system insecure Exhaust is loose and hitting caliper and other components *DANGEROUS* (6.1.2 (a)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced Rear shock and wheel support loose (6.1.1 (b) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Suspension component modified so the suspension is inoperative |5.3.3 |c| |ii|| | 1 |
| Rear Suspension rod pin or bush excessively worn swing arm excessive play |5.3.4 |a| |i|| | 1 |
| Roller brake test No brake control achieves an efficiency of 30% |1.2.2 |a| |i|| | 1 |
| Dipswitch does not operate immediately when selected on main beam switch seized. (4.1.3 (b)) | 1 |
| Steering operation restricted in free movement from lock to lock fouling with front brake hose and electrics. |2.1.4 |c|| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Front Steering headbearing has excessive wear or free play side to side (2.2.2 (f) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Headlamp insecure INSIDE HEADLAMP SHAKING WHEN ON |1.2.3b| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Stop lamp not working both front and rear |4.3.1 |a| |ii|| | 1 |
| Front Stop lamp switch with a delay in operation Not working (4.3.2 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Offside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Lower Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 1 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls not working off rear lever (4.3.2 (a) (iii)) | 1 |
| Rear Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Rear Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Stop lamp not working with rear brake control (4.3.1 (a) (ii)) | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Nearside Front Upper Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Stop lamp not working brake (4.3.1 (a) (ii)) | 1 |
| Front Exhaust has a major leak of exhaust gases header (6.1.2 (a)) | 1 |
| Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 1 |
| Rear Wheel bearing has excessive play Wheel has excessive movment (5.1.3 (a) (i)) | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Stop lamp not working front and back not working (4.3.1 (a) (ii)) | 1 |
| Front Brake lever mounting insecure master cylinder |3.1.2a| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Direction indicator not working near side rear (4.4.1 (a) (ii)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock THROTTLE INCREASES ON LOCK TO LOCK (2.1.4 (a)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected WHEN HANDLEBARS TURNED FROM LOCK TO LOCK THROTTLE INCREASES (6.2.7 (a) (ii)) | 1 |
| Rear Wheel has bolts/rivets missing or loose to the extent that control of the motorcycle is likely to be adversely affected (5.2.2 (e) (ii)) | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Shock absorber has a serious fluid leak Front left fork leg |5.3.2 |b|| | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Upper Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Headlamp not working on dipped beam Switch faulty (4.1.1 (a) (ii)) | 1 |
| Offside Rear Suspension attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play excess play at headstock(front wheel raised) (2.2.2 (f) (i)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Nearside Stop lamp not working lever (4.3.1 (a) (ii)) | 1 |
| Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Rear Exhaust system insecure |6.1.2 |a|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases manifold (6.1.2 (a)) | 1 |
| Engine mounting/bracket bracket missing Bolts missing from engine casings that support swingarm and exhaust system (6.1.8 (a) (ii)) | 1 |
| Motorcycle structure inadequately repaired such that structural rigidity is significantly reduced Front bodywork insecure (6.1.1 (d) (i)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort Rear brake has excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Fuel cap leaking |6.1.3 |b| |i|| | 1 |
| Lower Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Lower Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Brake component insecure (1.1.21 (c)) | 1 |
| Rear Valve stem seriously damaged leaking (5.2.3 (j)) | 1 |
| Central Front Lower Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Central Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases LEAKING AT CYLINDER HEAD |6.1.2 |a|| | 1 |
| Central Front Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Offside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working Faulty switch (4.4.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working Faulty switch (4.4.1 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases Emissions pipe rotten & detached (6.1.2 (a)) | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| All direction indicators incorrect colour |4.4.3 |a|| | 1 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Front Headlamp insecure front trim loose thus causing headlight to be insecure (4.1.1 (c)) | 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 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Position lamp lens seriously defective front light flickers when steering turned (4.2.1 (b)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock revs climb on both locks (2.1.4 (a)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling could be slightly bent forks or frame |2.4 |a|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp light intensity severely reduced lens cloudy (4.1.4 (a)) | 1 |
| Front Steering headbearing excessively stiff or notchy Notchy (2.2.2 (f) (i)) | 1 |
| Riders seat insecure Doesnt lock in closed position (6.2.5 (a) (ii)) | 1 |
| Offside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Wheel bearing play so excessive that directional control is impaired |5.1.3 |a| |ii|| | 1 |
| Nearside Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Front Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp insecure both and fairing |4.1.1 |c|| | 1 |
| Motorcycle structure has a fracture which is likely to adversely affect braking or steering vehicle fairing liable to become detatched |6.1.1 |a| |ii|| | 1 |
| Headlamp not working on dipped beam cannot be switched from main beam |4.1.1 |a| |ii|| | 1 |
| Headlamp insecure headlamp insecure |4.1.1 |c|| | 1 |
| Rear Brake pipe likely to become detached or damaged unsupported next to lower steering yolk (1.1.11 (d) (ii)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Steering operation impeded by a leg shield (2.1.4 (e)) | 1 |
| Front Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Rear Wheel fixing loose (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Rear reflector missing covered bye L plate (4.8.2 (a) (ii)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |