| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 7 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 4 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 3 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Position lamp showing white light to the rear |4.2.3 |a| |ii|| | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement |6.1.8 |a| |i|| | 2 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Rear Lower Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Front Brake disc significantly and obviously worn warped |1.1.14 |a| |i|| | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Steering linkage ball joint has excessive play |2.1.3 |b| |i|| | 1 |
| Front Brake caliper inadequately mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Brake disc insecure bolt missing from disc (1.1.14 (a) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Offside Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Central Rear Lower Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Central Rear Lower Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Central Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Offside Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Nearside Brake lever insecure |1.1.2 |e| |i|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Lower Suspension attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Offside Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Steering operation restricted in free movement from lock to lock o/s lock stop damaged. |2.1.4 |c|| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake hose excessively twisted Front brake hoes incorrectly routed |1.1.12 |b| |ii|| | 1 |
| Steering operation restricted in free movement from lock to lock Brake hoes fouling steering |2.1.4 |c|| | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure Rear mudguard insecure |6.1.1 |b| |i|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp showing white light to the rear |4.3.3 |a| |ii|| | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Throttle operating incorrectly Insecure (6.2.7 (a) (i)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Motorcycle structure excessively distorted |6.1.1a| | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Steering operation restricted in free movement from lock to lock on right lock |2.1.4 |c|| | 1 |
| Steering headbearing has excessive wear or free play excess play steering head bearings |2.2.2 |f| |i|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Nearside Upper Direction indicator not working both not working (4.4.1 (a) (ii)) | 1 |
| Offside Upper Direction indicator not working both indicators not working (4.4.1 (a) (ii)) | 1 |
| Central Rear Upper Stop lamp does not illuminate by the operation of both brake controls both levers fail to illuminate (4.3.2 (a) (iii)) | 1 |
| Central Front Upper Horn not working horn not working (7.7 (a)) | 1 |
| Central Front Upper Horn not working horn switch not working (7.7 (a)) | 1 |
| Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Offside Front All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Lower Steering headbearing in such a condition that steering control is adversely affected bearing broken up (2.2.2 (f) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Position lamp likely to become detached (4.2.1 (c) (ii)) | 1 |