| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 62 |
| Horn not working |1.7.3a| | 18 |
| Registration plate issues | 12 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 8 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Horn not working |7.7 |a| |ii|| | 5 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Horn control defective |1.7.2a| | 3 |
| Headlamp switch faulty |1.2.4| | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Nearside Front Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Brake lever has insufficient reserve travel Lever adjusted. |1.1.2 |a|| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Brake fluid significantly below minimum mark |1.1.10 |d| |ii|| | 1 |
| Offside Front Position lamp not working |4.2.1 |a|| | 1 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Front Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Throttle operating incorrectly notchy |6.2.7 |a| |i|| | 1 |
| Headlamp switch faulty Not working correctly for main beam |1.2.4| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Brake linkage excessively corroded |3.2.A1c| | 1 |
| Rear Brake rod excessively corroded |3.2.A1c| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Roller brake test indicates a binding brake not turn front |3.3.A1a| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Brake disc contaminated |1.1.14 |b|| | 1 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Rear Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Headlamp light source and lamp not compatible HID |4.1.4 |c|| | 1 |
| Rear Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Offside Direction indicators not working both R/H indicators not operated by indicator switch |1.5.1c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Front Lower Brake excessively binding |1.2.1 |f|| | 1 |
| Offside Front Lower Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Nearside Front Brake disc significantly and obviously worn Bobbins |1.1.14 |a| |i|| | 1 |
| Nearside Front Direction indicator lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii)) | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Brake lining|s| missing |1.1.13 |c|| | 1 |
| Nearside Front Lower Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Offside Front Lower Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Lower Steering linkage has excessive free play |2.2.2| | 1 |
| Rear Suspension component fractured Rear suspension component fractured. |5.3.3 |b| |ii|| | 1 |
| Headlamp not working on main beam Both main beams |4.1.1 |a| |ii|| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front Wheel excessively distorted |5.2.2 |c| |i|| | 1 |
| Front Horn not working |1.7.3a| | 1 |