| Most common failures | No# failures |
|---|
| Registration plate issues | 29 |
| Headlamp aim out of alignment | 26 |
| Registration plate lamp issues | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 8 |
| Stop lamp remains on when the brakes are released | 7 |
| Horn not working |1.7.3a| | 6 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| 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| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 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|| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 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)) | 2 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Upper Motorcycle structure adversely modified |6.1.1b| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake excessively binding Brake pedal shaft partly seized. |1.2.1 |f|| | 1 |
| Brake pedal pivots excessively worn causing rear brake to stick |3.1.3a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake pivot has restricted free movement |1.1.15 |e|| | 1 |
| Rear Brake excessively binding after rear brake applyed |1.2.1 |f|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Brake fluid reservoir leaking hydraulic fluid front brake |3.2.B1e| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Drive belt fouling another component BELT GAURD |6.2.1d| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies & rear |1.3.1a| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Central Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Central Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Stop lamp remains on when the brake is released rear control |1.3.1e| | 1 |
| Rear Roller brake test indicates a sticking brake 50 Kg in brake roller. Cannot turn wheel by hand |3.3.A1a| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Roller brake test indicates a binding brake Pedal binding on shaft |3.3.A1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Stop lamp not working front and rear |4.3.1 |a| |ii|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Rear Brake component leaking fluid |3.2.B4| | 1 |
| Front Brake component defective due to a deliberate modification which significantly reduces the original strength |3.1.5| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Stop lamp(s) remains on when the brakes are released (4.3.2 (a) (iii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Handlebar mounting insecure Handlebars loose (2.2.1 (a) (i)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Pillion seat with a defective supporting structure rear mud guard corroded on both sides rear and sharp edges (6.2.6 (a) (i)) | 1 |
| Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Throttle operating incorrectly throttle sticking (6.2.7 (a) (i)) | 1 |
| Offside Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Headlamp not working on main beam Tried new bulb still not working (4.1.1 (a) (ii)) | 1 |