| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 10 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Horn not working |1.7.3a| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Position lamp not working tail lamp (4.2.1 (a)) | 1 |
| Front Position lamp not working side lamp (4.2.1 (a)) | 1 |
| Offside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp aim projected beam image obviously incorrect LED bulb fitted to a halogen unit (4.1.2 (c)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Rear Suspension rod damaged and seriously weakened (5.3.3 (b) (i)) | 1 |
| Rear Suspension rod insecure and control of the motorcycle impaired (5.3.3 (a) (ii)) | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Stop lamp not working not working when rear brake applied (4.3.1 (a) (ii)) | 1 |
| Rear Shock absorber likely to become detached Shock lower mounting fractured |5.3.2 |a| |ii|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Nearside Headlamp switch insecure |1.2.4| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Registration plate issues | 1 |
| Nearside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| 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 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Stop lamp likely to become detached (4.3.1 (c) (ii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| All direction indicators adversely affected by the operation of another lamp bringing on the other indicators (4.4.3 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Lower Shock absorber likely to become detached snapped |5.3.2 |a| |ii|| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Front Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Rear Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Front Brake component leaking fluid |3.2.B4| | 1 |
| Offside Rear Lower Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Rear Lower Brake caliper leaking |1.1.16 |b| |i|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Nearside Front Footrest missing |6.2.1a| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Fuel cap sealing washer torn |7.2.2c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Front Upper Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Centre Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |