| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 35 |
| Registration plate issues | 19 |
| Headlamp aim out of alignment | 18 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 4 |
| Drive chain excessively tight |6.2.1d| | 4 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Fuel system component leaking fuel tap |7.2.1a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Locking devices not correctly fitted which may make the motor bicycle dangerous to ride foot peg split pin missing |6.2.1h| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Horn missing |1.7.1| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Fuel system component leaking Carburetor leaking. (6.1.3 (b) (i)) | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Offside Front wheel insecure |4.2.3b| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Offside Lower Riders seat with a defective supporting structure Bolt missing (6.2.5 (a) (i)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Central Rear Upper Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Central Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Exhaust mounting does not fully support the exhaust system silencer clamp is missing |7.1.1.c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear All direction indicators obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Stop lamp not working pedal |4.3.1 |a| |ii|| | 1 |
| Stop lamp adversely affected by the operation of another lamp |4.3.3 |b|| | 1 |
| Rear Position lamp adversely affected by the operation of another lamp |4.2.3 |b|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Steering lock stop missing |2.1.3| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear An item not tested |Manual| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Upper Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Brake fluid reservoir cap missing |3.2.B1c| | 1 |
| Throttle operating incorrectly Sticking on hand guards |6.2.1f| | 1 |
| Nearside Front Direction indicator not working Bad connection in wiring, now ok |4.4.1 |a| |ii|| | 1 |
| Rear Position lamp not working Tail light bulb replaced |4.2.1 |a|| | 1 |
| Offside Rear Drive chain fouling another component |6.2.1d| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Nearside Front 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 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| 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 wheel rotation likely to be impeded |6.2.1b| | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |