| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Registration plate issues | 11 |
| Headlamp aim beam image kick up to the offside |1.6| | 7 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Brake hose damaged | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Exhaust is leaking and excessively noisey front pipes |7.1.1b| | 1 |
| Offside Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 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 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Nearside Front Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Offside Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Rear position lamp missing |1.1.1a| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Headlamp switch faulty |1.2.4| | 1 |
| Front Upper Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Stop lamp not working front brake lever (4.3.1 (a) (ii)) | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| 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% |1.2.2 |a| |i|| | 1 |
| Brake pedal is so short that the brake cannot be readily applied Pedal broke off during application. |1.1.2 |d|| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Front Fuel system component leaking |7.2.1a| | 1 |
| Offside Outer Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Centre Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Centre Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies Switch broken |1.3.1a| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Brake hose leaking Replace front brake hoses |1.1.12 |c|| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |