| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 27 |
| Registration plate issues | 27 |
| Rear reflector on motorcycle missing |1.4.1| | 17 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Headlamp aim beam image kick up to the offside |1.6| | 12 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 10 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 9 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 9 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 7 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Registration plate lamp issues | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Horn not working |1.7.3a| | 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 |
| Direction indicators not working |1.5.1c| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front Direction indicators not working |1.5.1c| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear mono-shock insecure |2.4.B.4| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Direction indicator obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Centre Rear Upper Rear reflector on sidecar incorrectly positioned |1.4.2d| | 1 |
| Front Stop lamp not working control 1 (4.3.1 (a) (ii)) | 1 |
| Rear Motorcycle structure cracked |6.1.1a| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Offside Rear Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Offside Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Upper Horn not working |1.7.3a| | 1 |
| Centre Front Upper Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Suspension component attachment bracket/mounting damaged and seriously weakened (5.3.3 (b) (i)) | 1 |
| Nearside Rear Upper Motorcycle structure cracked |6.1.1a| | 1 |
| An item not tested |Manual| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Rear suspension component loose |2.4.A.1a| | 1 |
| Offside Steering operation fouling on the fuel tank or bodywork on full lock Handle bar mounting plate fouling frame on a right hand lock |2.1.4 |b|| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Brake performance not tested |3.3| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear 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 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Front Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Front Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Nearside Front Brake disc significantly and obviously worn bent |1.1.14 |a| |i|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Stop lamp obscured |1.3.1c| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Front Brake excessively binding |1.2.1 |f|| | 1 |
| Offside Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Nearside Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Steering lock stop loose |2.1.3| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Outer Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Rear Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Vehicle identification number not displayed (0.2 (a)) | 1 |
| Position lamp showing red light to the front Front position lamp shows red, green and blue light alternately. (4.2.3 (a) (ii)) | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake lagging in operation |1.2.1 |d|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear suspension component seized |2.4A2a|ii|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Rear Brake locking device insecure |3.2.A1e| | 1 |
| Central Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Central Front Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |