| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 77 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 75 |
| Registration plate lamp issues | 52 |
| Registration plate issues | 48 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 40 |
| Drive chain excessively loose |6.2.1d| | 39 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 35 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 35 |
| Throttle operating incorrectly |6.2.1f| | 30 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 26 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 24 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 22 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 19 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 19 |
| Front Brake excessively binding (1.2.1 (f)) | 19 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 17 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 16 |
| 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| | 12 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 12 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 11 |
| Drive chain worn to excess |6.2.1e| | 11 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 11 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 11 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 11 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 11 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 10 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 10 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Rear Brake excessively binding (1.2.1 (f)) | 10 |
| Drive chain excessively tight |6.2.1d| | 9 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 9 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 9 |
| Offside Handlebar deformed |2.1.1b| | 8 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 8 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 8 |
| Rear Drive chain excessively loose |6.2.1d| | 8 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 8 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 7 |
| Front wheel bearings have excessive free play |2.3.5b| | 7 |
| Front Brake disc|s| cracked |3.2.A1g| | 7 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 7 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 7 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 6 |
| An item not tested |Manual| | 6 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 6 |
| Exhaust excessively deteriorated |7.1.1a| | 6 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 6 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 6 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 6 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 6 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Nearside Front Footrest insecure |6.2.1a| | 5 |
| Offside Front Footrest insecure |6.2.1a| | 5 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 5 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Riders seat insecure |6.2.1a| | 5 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 5 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 5 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 4 |
| Horn not working |1.7.3a| | 4 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 4 |
| Brake performance not tested |3.3| | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 4 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Nearside Front Brake disc fractured (1.1.14 (a) (ii)) | 4 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Offside Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 3 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Drive chain worn to excess |6.2.1e| | 3 |
| Lower Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Direction indicators not working |1.5.1c| | 3 |
| Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 3 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Front Horn not working |1.7.3a| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear Brake performance not tested |3.3| | 3 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Front brake disc in such a condition that it is seriously weakened | 3 |