| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 62 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 39 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 26 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 26 |
| Registration plate lamp issues | 25 |
| Registration plate issues | 25 |
| Drive chain excessively loose |6.2.1d| | 25 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 21 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 17 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 17 |
| Throttle operating incorrectly |6.2.1f| | 17 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 15 |
| Headlamp aim beam image kick up to the offside |1.6| | 13 |
| Drive chain worn to excess |6.2.1e| | 10 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 10 |
| Rear reflector on motorcycle missing |1.4.1| | 10 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Rear Drive chain excessively loose |6.2.1d| | 9 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 8 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 8 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 6 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 6 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 6 |
| Steering headbearing has excessive free play |2.2.2| | 6 |
| Drive chain excessively tight |6.2.1d| | 6 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 6 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Rear Brake excessively binding (1.2.1 (f)) | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Exhaust excessively deteriorated |7.1.1a| | 4 |
| Horn not working |1.7.3a| | 4 |
| Headlamp insecure |1.2.3b| | 4 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 4 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 4 |
| Offside Handlebar deformed |2.1.1b| | 4 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 4 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Front Throttle operating incorrectly |6.2.1f| | 3 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 3 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 3 |
| Drive chain fouling another component |6.2.1d| | 3 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Offside Front Brake disc fractured (1.1.14 (a) (ii)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Direction indicators not working |1.5.1c| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 2 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 2 |
| Nearside Front Handlebar deformed |2.1.1b| | 2 |
| Nearside Handlebar deformed |2.1.1b| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 2 |
| Offside Steering control handlebar movement restricted by trapped cables |2.1.2c| | 2 |
| Offside Steering lock stop ineffective |2.1.3| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear Drive chain worn to excess |6.2.1e| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Offside Front Handlebar deformed |2.1.1b| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 2 |
| Rear mono-shock pivot seized |2.4.B.4| | 2 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 2 |
| Rear suspension has an inadequate repair of a load bearing member or its supporting structure. |2.4.A.2d| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Stop lamp does not illuminate immediately a brake applies rear switch |1.3.1a| | 2 |
| Offside Front Footrest missing |6.2.1a| | 2 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Brake performance not tested |3.3| | 2 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Stop lamp not working front brake (4.3.1 (a) (ii)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |