| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 13 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Registration plate issues | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Nearside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Brake disc contaminated Fork oil |1.1.14 |b|| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies Rear brake application. |1.3.1a| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake component damaged and seriously reduced in strength |3.2.A1| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Throttle operating incorrectly sticking |6.2.1f| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Nearside Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. |3.3.E1b| | 1 |
| Brake hose damaged | 1 |
| Rear suspension component cracked |2.4.A.1a| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Front Direction indicator incorrect colour lens faded showing white light. |1.5.1b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake hose connection leaking (1.1.12 (c)) | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |