| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 48 |
| Headlamp aim out of alignment | 40 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 15 |
| Stop lamp remains on when the brakes are released | 13 |
| Stop lamp not working (4.3.1 (a) (ii)) | 12 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 10 |
| Horn not working (7.7 (a) (ii)) | 9 |
| Front Brake excessively binding (1.2.1 (f)) | 9 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 9 |
| Horn not working (7.7 (a)) | 9 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 8 |
| Riders seat insecure (6.2.5 (a) (ii)) | 8 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 7 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 6 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 6 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 5 |
| Front brake disc in such a condition that it is seriously weakened | 5 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 5 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Rear Brake excessively binding (1.2.1 (f)) | 4 |
| Rear Position lamp not working (4.2.1 (a)) | 4 |
| Headlamp aim not tested (4.1.2 (b)) | 4 |
| Rear Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 4 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 4 |
| Registration plate issues | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Headlamp insecure (4.1.1 (c)) | 3 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Engine mounting/bracket excessively loose (6.1.8 (a) (ii)) | 2 |
| Horn sound not in accordance with requirements (7.7 (c)) | 2 |
| Rear Brake drum significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Riders seat with a defective supporting structure (6.2.5 (a) (i)) | 2 |
| Rear Brake grabbing severely (1.2.1 (c)) | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Offside Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Footrest missing stuck up (6.2.12 (a)) | 1 |
| Rear Exhaust has a major leak of exhaust gases front of exhaust has a substantial hole (6.1.2 (a)) | 1 |
| Rear Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition noise due to hole in exhaust (8.1.1 (a)) | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Central Front Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Front Brake disc significantly and obviously worn Min thickness is: 3.5mm Disc at: 2.7mm (1.1.14 (a) (i)) | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Rear Engine mounting/bracket excessively loose (6.1.8 (a) (ii)) | 1 |
| Rear Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Stop lamp not working From front brake control (4.3.1 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn swing arm bushes (5.3.4 (a) (i)) | 1 |
| Engine mounting/bracket bracket excessively loose (6.1.8 (a) (ii)) | 1 |
| Nearside Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Offside Front Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Offside Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Lower Engine mounting/bracket bracket excessively loose mounting bushes (6.1.8 (a) (ii)) | 1 |
| Nearside Front Brake component inadequately mounted brake lever mounting bracket is excessively insecure (1.1.21 (c)) | 1 |
| Handlebar grip insecure to handlebar both (2.2.1 (d) (ii)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Stop lamp not working brake switch replaced (4.3.1 (a) (ii)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Stop lamp not working O/S Lever (4.3.1 (a) (ii)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Offside Front Stop lamp not working switch (4.3.1 (a) (ii)) | 1 |
| Offside Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp cannot test position lamp (brake light staying on) (4.2.3 (b)) | 1 |
| Nearside Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Offside Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Brake lever pivot has excessive free play (1.1.1 (b)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn Swingarm / Engine mount (5.3.4 (a) (i)) | 1 |
| Suspension rod modified so the suspension is inoperative front forks bent (5.3.3 (c) (ii)) | 1 |
| Motorcycle structure is so deformed it is likely to adversely affect braking or steering frame bent (6.1.1 (a) (ii)) | 1 |
| Front Suspension component modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Motorcycle structure is deformed and structural rigidity is significantly reduced front wheel to close to faring (6.1.1 (a) (i)) | 1 |
| Offside Front Steering operation fouling on the fuel tank or bodywork on full lock headlight/handlebar (2.1.4 (b)) | 1 |
| Offside Front Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Central Lower Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Rear Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Rear Brake cable excessively corroded (1.1.15 (b)) | 1 |
| Nearside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Offside Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Stop lamp not working Front and back stop lamps not working. (4.3.1 (a) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen Incorrect bulb fitted. Replaced with L.E.D. bulb with no beam pattern (4.1.2 (a)) | 1 |
| Handlebar grip insecure to handlebar L/H (2.2.1 (d) (ii)) | 1 |
| Brake indicates excessive fluctuation of brake effort Rear (1.2.1 (e)) | 1 |
| Brake lever has abnormal movement of levers indicating excessive wear or maladjustment Rear (1.1.15 (f)) | 1 |
| Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Lower Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Offside Front Motorcycle structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Decelerometer brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Stop lamp not working front lever (4.3.1 (a) (ii)) | 1 |
| Rear Lower Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Suspension component pin or bush excessively worn engine mount bar (5.3.4 (a) (i)) | 1 |
| Nearside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Headlamp aim not tested head light loose (4.1.2 (b)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Brake lever has insufficient reserve travel FRONT BRAKE CABLE WARN (1.1.2 (a)) | 1 |
| Rear Wheel hub worn to the extent that wheel security is adversely affected (5.2.1 (b) (ii)) | 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 |
| Front Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Rear Stop lamp not working front lever (4.3.1 (a) (ii)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling handle bars out of alignment with front wheel (2.4 (a)) | 1 |
| Front Brake lever is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Rear Brake lagging in operation cable seized or hub pivot seized (1.2.1 (d)) | 1 |
| Rear Brake lever has insufficient reserve travel needs adjusting (1.1.2 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak fork seal leaking (5.3.2 (b)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Central Lower Suspension rod pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected EXCESSIVE PLAY IN STEERING HEAD BEARINGS (2.2.2 (f) (ii)) | 1 |
| Horn not working HORN NOT WORKING (7.7 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |