| Most common failures | No# failures |
|---|
| Registration plate issues | 21 |
| Headlamp aim out of alignment | 20 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Registration plate lamp issues | 10 |
| Horn not working |1.7.3a| | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Horn not working (7.7 (a)) | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| 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 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Headlamp switch faulty all lights intermittent due to faulty switch |1.2.4| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Brake linkage clevis joint excessively worn |3.2.A1d| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake master cylinder insecure (1.1.10 (c)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Brake performance unable to be tested (1.2.1 (g)) | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Stop lamp not working front brake (4.3.1 (a) (ii)) | 1 |
| Rear Brake pedal cannot be released smoothly (3.1.3d) | 1 |
| Rear reflector on motorcycle missing (1.4.1) | 1 |
| Offside Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Rear Brake component insecure pad retaining pad pin locking device missing |1.1.21 |c|| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Central Rear Rear reflector likely to become detached (4.8.1 (b) (ii)) | 1 |
| Nearside Front Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 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 |
| Stop lamp not working front brake control (4.3.1 (a) (ii)) | 1 |
| Rear Brake master cylinder defective but brake still operating rear brake very spongy (1.1.10 (b) (i)) | 1 |
| Horn not working (1.7.3a) | 1 |
| Rear Brake caliper(s) securing bolt(s) loose (3.2.A1j) | 1 |
| Offside Handlebar deformed (2.1.1b) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Front Horn not working (1.7.3a) | 1 |
| Central Rear Wheel bearing has excessive play Slight play, tightened spindle nut, no play now present (5.1.3 (a) (i)) | 1 |
| Offside Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Rear Brake lagging in operation Very soft operation (1.2.1 (d)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Stop lamp does not illuminate immediately a brake applies front |1.3.1a| | 1 |
| Front position lamp does not illuminate immediately when switched on side light |1.1.3a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Stop lamp missing both |1.3.3a| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear brake lever |1.3.1a| | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected |1.1.2 |b| |ii|| | 1 |
| Front Brake component insecure |1.1.21 |c|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Brake grabbing severely |1.2.1 |c|| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Stop lamp insecure |1.3.3b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Nearside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front Shock absorber has a serious fluid leak Both sides (5.3.2 (b)) | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Steering lock stop maladjusted |2.1.3| | 1 |
| Offside Steering lock stop maladjusted |2.1.3| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Front Headlamp at least one does not illuminate on dipped beam the bulb not working and is not correctly fitted |1.2.2a|i|| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working Front lever (4.3.1 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on (1.1.3a) | 1 |
| Steering headbearing has excessive free play (2.2.2) | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars (2.1.2b) | 1 |
| Rear Brake disc(s) excessively scored (3.2.A1l) | 1 |
| Brake hose excessively stretched Also trapping in steering yolk (1.1.12 (b) (ii)) | 1 |
| Front Front position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Front Horn not working |1.7.3a| | 1 |