| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 29 |
| Rear reflector on motorcycle missing |1.4.1| | 15 |
| Horn not working (7.7 (a) (ii)) | 13 |
| Rear reflector missing (4.8.2 (a) (ii)) | 10 |
| Horn not working |1.7.3a| | 9 |
| Rear reflector missing |4.8.2 |a| |ii|| | 8 |
| Horn not working (7.7 (a)) | 8 |
| Horn not working |7.7 |a| |ii|| | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Registration plate issues | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Central Front Horn not working (7.7 (a)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Rear wheel insecure |4.2.3b| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front Brake hose excessively twisted |3.2.B3a| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering throttle cables |2.1.2a| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp dip switch faulty |1.2.2b|i|| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Front Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Brake fluid contaminated |1.8 |a|| | 1 |
| Rear Brake fluid contaminated |1.8 |a|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake lever is so short that the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Steering damper in such a condition that the steering action is adversely affected steering damper seized |2.1.4 |d| |ii|| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Central Front Horn not working |7.7 |a| |ii|| | 1 |
| Offside Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Headlamp not working on dipped beam intermitant |4.1.1 |a| |ii|| | 1 |
| Fuel cap leaking |6.1.3 |b| |i|| | 1 |
| Footrest missing Pillion |6.2.12 |a|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Shock absorber has a serious fluid leak right hand side (5.3.2 (b)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Brake lever pivot has excessive free play (1.1.1 (b)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Brake pedal insecure (1.1.2 (e) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Horn not working loose wire (7.7 (a) (ii)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect LED bulbs fitted to halogen lens. (4.1.2 (c)) | 1 |
| Rear Suspension arm pin or bush likely to become detached (5.3.4 (a) (ii)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Rear All direction indicators obviously incorrectly positioned to close together need to be a minimum of 180mm apart (4.4.3 (a)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |