| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 39 |
| Registration plate issues | 30 |
| Rear reflector on motorcycle missing |1.4.1| | 29 |
| Registration plate lamp issues | 10 |
| Rear reflector missing (4.8.2 (a) (ii)) | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Horn not working |7.7 |a| |ii|| | 4 |
| Horn not working (7.7 (a)) | 3 |
| Horn not working |1.7.3a| | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 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 |
| Centre Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Throttle operating incorrectly Sticks open on full lock |6.2.1f| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Footrest insecure |6.2.12 |a|| | 1 |
| Offside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Shock absorber has a serious fluid leak fork seals replaced (5.3.2 (b)) | 1 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Front wheel insecure |4.2.3b| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake performance not tested |3.3| | 1 |
| Decelerometer brake test no brake control achieves an efficiency of 30% |3.3.E1a| | 1 |
| Decelerometer brake test neither brake control achieves an efficiency of 25% |3.3.E1c| | 1 |
| Nearside Stop lamp emits other than a steady red light |1.2.1e| | 1 |
| Offside Stop lamp emits other than a steady red light |1.2.1e| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Brake pedal has inadequate reserve travel due to pad wear |3.1.3b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Direction indicator not working dirty connection in switch (4.4.1 (a) (ii)) | 1 |
| Rear Brake pedal has inadequate reserve travel Bled rear brake. |3.1.3b| | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Brakes imbalanced across an axle | 1 |
| Stop lamp not working on rear brake |1.2.1b| | 1 |
| Rear reflector obviously incorrectly positioned 2 are required |1.5.1a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Direction indicator obviously incorrectly positioned both rear (4.4.3 (a)) | 1 |
| Headlamp not working on main beam both (4.1.1 (a) (ii)) | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Nearside Front Lower Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Offside Front Lower Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Nearside Front Upper Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Offside Front Upper Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Nearside Front Lower Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Rear Brake hose fouling Hydrolic hose fouling on shock absorber bolt lower ! |3.2.B3b| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 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 |
| Nearside Front Upper Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Horn control defective |1.7.2a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Stop lamp not working when rear brake applied (4.3.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 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 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 1 |
| Stop lamp not working rear brake switch |4.3.1 |a| |ii|| | 1 |
| Hazard warning lamps not fitted |1.4.B.1a| | 1 |
| Rear reflector missing |1.5.1a| | 1 |
| Nearside Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Front Stop lamp not working switch (4.3.1 (a) (ii)) | 1 |
| Direction indicator not working OSR |4.4.1 |a| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Direction indicator flashing more than 120 times per minute all |1.5.1c| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Throttle operating incorrectly sticking |6.2.1f| | 1 |
| Rear Direction indicators not working both |1.5.1c| | 1 |
| Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies when front brake lever is applied stop light does not illuminate |1.3.1a| | 1 |
| Brake caliper insecure pad locating pin (1.1.16 (c) (i)) | 1 |
| Nearside Direction indicator not working Both sidecar indicators (4.4.1 (a) (ii)) | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear reflector reflecting white to the rear (4.8.2 (a) (ii)) | 1 |
| Rear An item not tested |Manual| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working Front brake light switch |4.3.1 |a| |ii|| | 1 |
| Offside Front Upper Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |