| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 38 |
| Rear reflector on motorcycle missing |1.4.1| | 31 |
| Registration plate issues | 22 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 7 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 7 |
| Registration plate lamp issues | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| 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| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Horn not working |1.7.3a| | 2 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Upper Throttle operating incorrectly |6.2.1f| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator obviously incorrectly positioned too close together |4.4.3 |a|| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Rear Position lamp not working N/S BULB OUT |4.2.1 |a|| | 1 |
| Rear Brake disc fractured |1.1.14 |a| |ii|| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Wheel bearing play so excessive that directional control is impaired |5.1.3 |a| |ii|| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Nearside Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Offside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Brake locking device insecure |3.2.A1e| | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen both |1.6.B.1| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls not operating when front brake applied (4.3.2 (a) (iii)) | 1 |
| Offside Front Lower Footrest insecure |6.2.1a| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Horn sound not in accordance with requirements horn sound innefective - prs and working (7.7 (c)) | 1 |
| Stop lamp not working Front brake control |4.3.1 |a| |ii|| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear mono-shock pivot seized |2.4.B.4| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Brake back plate|s| insecure |3.2.A1j| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Exhaust has a major leak of exhaust gases exhaust condition |6.1.2 |a|| | 1 |
| Indicator switch inoperative |4.4.2 |a| |ii|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| All direction indicators not working All indicators (4.4.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Exhaust system insecure Lower clamp missing. |6.1.2 |a|| | 1 |
| Nearside Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front position lamp adversely affected by the operation of another lamp stop lamp |1.1.3b| | 1 |
| Throttle operating incorrectly grip insecure |6.2.1f| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front shock absorber seal failed and leaking oil both |2.3.3| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear 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 Position lamp missing (4.2.1 (a)) | 1 |
| Rear Brake pipe excessively chafed |3.2.B2a| | 1 |
| Rear Drive belt excessively loose. |6.2.1d| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Upper Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Upper Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |