| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 33 |
| Registration plate issues | 21 |
| Headlamp aim out of alignment | 19 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Rear reflector missing (4.8.2 (a) (ii)) | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Rear reflector missing |4.8.2 |a| |ii|| | 5 |
| Registration plate lamp issues | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| 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| | 2 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Rear reflector missing FITTED (4.8.2 (a) (ii)) | 1 |
| Exhaust markings indicating not for road use or similar wording STANDARD ONE FITTED AT TIME OF TEST (6.1.2 (c)) | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Central Front Upper Headlamp incorrect colour headlamp cover fitted - removed so not affect light colour or pattern (4.1.4 (a)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Direction indicator obviously incorrectly positioned both |4.4.3 |a|| | 1 |
| Front Position lamp missing |4.2.1 |a|| | 1 |
| Direction indicators not working all |1.5.1c| | 1 |
| Rear Lower Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Stop lamp not working front lever (4.3.1 (a) (ii)) | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Side stand bolt loose. |6.2.1h| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Nearside Footrest insecure riders |6.2.1a| | 1 |
| Rear Roller brake test indicates a sticking brake brake remains on when you release it |3.3.A1a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Throttle operating incorrectly Sticking (6.2.7 (a) (i)) | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Stop lamp not working by front lever |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Stop lamp not working front brake |4.3.1 |a| |ii|| | 1 |
| Horn not working |1.7.3a| | 1 |
| 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 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls foot brake lever not operating lamp (4.3.2 (a) (iii)) | 1 |
| Central Rear Upper Stop lamp not working front brake light switch not working (4.3.1 (a) (ii)) | 1 |
| Central Rear Lower Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies front control |1.3.1a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on Replaced 380 bulb. |1.1.3a| | 1 |
| Rear reflector on motorcycle missing Fitted accessory item. |1.4.1| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Stop lamp does not illuminate immediately a brake applies front switch |1.3.1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned built into tail light (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator obviously incorrectly positioned built into tail light (4.4.3 (a)) | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Central Rear Rear mono-shock pivot excessively worn in swing arm |2.4.B.4| | 1 |
| Nearside Front Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Direction indicator not working l/h/r |4.4.1 |a| |ii|| | 1 |
| 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 |
| Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |