| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 40 |
| Registration plate issues | 14 |
| Registration plate lamp issues | 12 |
| Brake pipe excessively corroded | 10 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 8 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 7 |
| Parking brake: efficiency below requirements |3.7.B.7| | 7 |
| Windscreen wiper does not clear the windscreen effectively | 5 |
| Horn not working |1.6.2a| | 4 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 3 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 3 |
| Anti-lock braking system warning lamp indicates an ABS fault | 3 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 3 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 3 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 3 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Brakes imbalanced across an axle | 3 |
| Offside Front Headlamp aim beam image kick up to the offside |1.8| | 2 |
| Headlamp aim beam image kick up to the offside |1.8| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 2 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 2 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Stop lamp not working |1.2.1b| | 2 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 2 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 2 |
| Windscreen has damage | 2 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 2 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 2 |
| Offside Headlamp aim beam image obviously incorrect (1.8.A.1b) | 2 |
| Brake hose damaged | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 2 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 2 |
| Brake hose excessively deteriorated | 2 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 1 |
| Obligatory mirror insecure |8.1.1| | 1 |
| Nearside Front Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Front Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 1 |
| Rear fog lamp missing |1.3.2a| | 1 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 1 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 1 |
| Front Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 1 |
| Offside Front Anti-roll bar linkage insecurely attached (5.3.3 (a) (i)) | 1 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear Position lamp with a multiple light source more than 1/2 not functioning (4.2.1 (a) (ii)) | 1 |
| Offside Rear Position lamp with a multiple light source more than 1/2 not functioning (4.2.1 (a) (ii)) | 1 |
| Oil leaking excessively from engine (8.4.1 (a) (i)) | 1 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 1 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 1 |
| Exhaust emits excessive dense blue smoke during acceleration (8.2.1.2 (g)) | 1 |
| Offside Rear Shock absorbers has a serious fluid leak | 1 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Emissions not tested (8.2.1.2 (d)) | 1 |
| Parking (secondary brake) on a single line braking system has no recorded effort at a wheel (1.3.1 (a) (ii)) | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Drive shaft flexible coupling excessively deteriorated (6.1.7 (d) (i)) | 1 |
| Offside Obligatory mirror missing (3.3 (a)) | 1 |
| Rear Rear fog lamp not working |4.5.1 |a| |ii|| | 1 |
| Nearside Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Driver`s view of the road through the swept area of the windscreen materially affected by an obstruction |3.1 |a| |ii|| | 1 |
| Nearside Front Radius arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Nearside Front Upper Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 1 |
| Offside Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 1 |
| Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 1 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 1 |
| Windscreen washer not working | 1 |
| Nearside Front Suspension arm pin or bush excessively worn front arm inner bush (5.3.4 (a) (i)) | 1 |
| Offside Front Suspension arm pin or bush excessively worn front arm inner bush (5.3.4 (a) (i)) | 1 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 1 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Front Suspension arm has excessive play in a pin/bush rear bush |2.4.G.2| | 1 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Nearside Rear coil spring broken |2.4.C.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Stop lamp not working |1.2.1b| | 1 |
| Stop lamp not working x2 |1.2.1b| | 1 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear Body component damaged and likely to cause injury light lens |6.2.1 |a| |i|| | 1 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive 2.20% |7.3.D.3| | 1 |
| Nearside Rear Tie bar/rod has excessive play in a pin/bearing |2.4.G.2| | 1 |
| Nearside Rear Wheel bolt|s| missing |4.2.A.1e| | 1 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Nearside Rear Shock absorbers has a serious fluid leak | 1 |
| Battery insecure |1.9.1| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Offside Rear Rear fog lamp not working (1.3.2b) | 1 |
| Offside Rear Rear position lamp(s) not working (1.1.A.3b) | 1 |
| Rear parking brake recording little or no effort | 1 |
| Supplementary Restraint System warning lamp indicates a fault (5.4.2) | 1 |
| Offside Front Front position lamp(s) not working (1.1.A.3b) | 1 |
| Emissions not tested (7.3.A.1) | 1 |
| Parking brake: efficiency below requirements (3.7.B.7) | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Rear Upper Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Offside Rear Upper Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Nearside Front Lower Suspension arm pin or bush excessively worn rear one centre straight |5.3.4 |a| |i|| | 1 |
| Offside Front Lower Suspension arm pin or bush excessively worn rear centre straight one |5.3.4 |a| |i|| | 1 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Rear Brake pipe likely to become detached or damaged support bracket/clip missing on flexy brake pipe ferrel (1.1.11 (d) (ii)) | 1 |
| Offside Front Headlamp aim projected beam image is obviously incorrect bulb incorrectly fitted (4.1.2 (c)) | 1 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front Direction indicators adversely affected by the operation of another lamp indicator is on all the time |1.4.A.2h| | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 1 |
| Offside Rear Wheel bolt|s| missing |4.2.A.1e| | 1 |
| Rear brake binding | 1 |
| Brake fluid warning lamp illuminated |3.6.G.2| | 1 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Road wheel more than one fixing missing (5.2.1 (a) (ii)) | 1 |
| Nearside Front Lower Front suspension ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Rear Brake pipe at imminent risk of failure or fracture (1.1.11 (a)) | 1 |
| Front brake disc contaminated by oil |3.5.1h| | 1 |
| Front shock absorber leaking oil |9.2.7b| | 1 |
| Offside Rear Rear wheel bearing has excessive play |2.6.2| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition |7.1.4| | 1 |
| Parking brake is not capable of being maintained in operation by direct mechanical action only |3.1.2| | 1 |
| Offside Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Offside Front Shock absorbers has a serious fluid leak | 1 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Brake disc|s| is excessively distorted |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 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 1 |
| Rear fog lamp adversely affected by the operation of another lamp |1.3.2f| | 1 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt front arm (5.3.4 (b) (ii)) | 1 |
| Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt rear arm (5.3.4 (b) (ii)) | 1 |
| Offside Front Track rod end ball joint dust cover insecure so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 1 |
| Nearside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt rear arm (5.3.4 (b) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected ENGINE IS REVVING ON AFTER THROTTLE IS CLOSED (6.2.7 (a) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Suspension component pin or bush excessively worn VERY CORROIDED |5.3.4 |a| |i|| | 1 |
| Nearside Rear Road wheel bead rim badly distorted |4.2.A.1a| | 1 |
| Nearside Front Road wheel bead rim badly distorted |4.2.A.1a| | 1 |
| Bonnet cannot be secured in the closed position |8.4.1| | 1 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 1 |
| Offside Front Suspension arm pin or bush excessively worn inner |5.3.4 |a| |i|| | 1 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 1 |
| Front Exhaust system not adequately supported |7.1.1| | 1 |
| Offside Front Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 1 |
| Nearside Rear Upper Suspension arm pin or bush excessively worn Centre |5.3.4 |a| |i|| | 1 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 1 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Emissions not tested |7.3.A.1| | 1 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 1 |
| Brake performance not tested |3.7.A.1| | 1 |
| Fuel cap/sealing device sealing washer deteriorated |7.2.4c| | 1 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 1 |
| Offside Rear fog lamp not working |1.3.2b| | 1 |
| Rear fog lamp not working |1.3.2b| | 1 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Front Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 1 |
| Parking brake lever releases when knocked |3.1.6a| | 1 |
| Parking brake lever ratchet mechanism is excessively worn |3.1.5| | 1 |
| Nearside Front Anti-roll bar ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Front Anti-roll bar ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 1 |
| Nearside Track rod end ball joint worn to the extent there is a serious risk of detachment (2.1.3 (b) (ii)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Lower Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Steering rack gaiter split |2.2.D.2d| | 1 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Offside Front Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Nearside Headlamp missing |1.7.3| | 1 |
| Nearside Front Direction indicator missing |1.4.A.2b| | 1 |
| Fuel cap/sealing device missing |7.2.4a| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |