| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 81 |
| Registration plate issues | 74 |
| Headlamp aim out of alignment | 30 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 13 |
| Registration plate lamp issues | 11 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 11 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 8 |
| Rear Position lamp not working (4.2.1 (a)) | 7 |
| Rear reflector missing (4.8.2 (a) (ii)) | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| 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| | 5 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Nearside Rear Direction indicators not working |1.5.1c| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Offside Rear Direction indicator not working |1.5.1c| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Offside Rear Direction indicators not working |1.5.1c| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Nearside Rear Footrest missing |6.2.1a| | 3 |
| Offside Rear Footrest missing |6.2.1a| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 2 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Central Rear reflector on motorcycle missing |1.4.1| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking top rear engine mount loose |6.1.1c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride R/H wheel adjuster loose |6.2.1h| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Steering damper insecure |2.1.2d| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp adversely affected by the operation of another lamp |4.3.3 |b|| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake pedal mounting insecure |3.1.2a| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Front Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Nearside Front Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Offside Front Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Horn not working |1.7.3a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Brake pedal is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear reflector on motorcycle does not reflect squarely to the rear |1.4.1| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Offside Front Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Suspension attachment bracket/mounting insecure Bolt missing from mudguard, insecure. (5.3.3 (a) (i)) | 1 |
| Vehicle identification number obviously falsified No factory plate or stamp, just stickers. (0.2 (b)) | 1 |
| Rear Position lamp not working Tail light not working. (4.2.1 (a)) | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |