| Most common failures | No# failures |
|---|
| Registration plate issues | 39 |
| Rear reflector on motorcycle missing |1.4.1| | 26 |
| Headlamp aim out of alignment | 21 |
| 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| | 12 |
| Stop lamp remains on when the brakes are released | 10 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 6 |
| Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Offside Rear Direction indicators not working |1.5.1c| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Registration plate lamp issues | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Stop lamp not working Off the foot pedal. (4.3.1 (a) (ii)) | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Rear Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Brake caliper insecurely mounted and braking performance affected rear caliper bolt missing (1.1.16 (c) (ii)) | 1 |
| Stop lamp does not illuminate immediately a brake applies poped brake light bulb |1.3.1a| | 1 |
| Offside Front Upper Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Offside Front Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Nearside Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Throttle operating incorrectly Throttle sticking right hand lock. |6.2.1f| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Offside Front Lower Wheel fixing missing |single fixing| |5.2.1 |a| |ii|| | 1 |
| Offside Front Upper Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear Lower 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 |
| Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Inner Front Lower Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Nearside Rear Lower Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Front Upper Steering damper in such a condition that the steering action is impaired. |2.1.2d| | 1 |
| Nearside Front All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear reflector on motorcycle missing new fitted |1.4.1| | 1 |
| All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Exhaust has a major leak of exhaust gases front pipe |6.1.2 |a|| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Headlamp aim beam image kick up to the offside (1.6) | 1 |
| Rear reflector on motorcycle missing (1.4.1) | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake lever has restricted free movement no free play in front brake lever |1.1.15 |e|| | 1 |
| Rear Direction indicator not working Left Hand (4.4.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Rear control does illuminate (4.3.2 (a) (iii)) | 1 |
| Rear Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear suspension bearing has excessive free play front swing arm bearings |2.4.A2a|i|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition no baffle fitted |8.1.1 |a|| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp remains on when the brake is released Front brake switch |1.3.1e| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 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 |
| Handlebar so insecure it is likely to become detached |2.2.1 |b| |ii|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| All direction indicators incorrect colour all |4.4.3 |a|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Drive belt worn to excess |6.2.1e| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |