| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 76 |
| Registration plate issues | 36 |
| Headlamp aim beam image kick up to the offside |1.6| | 26 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 25 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 19 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 15 |
| Drive chain excessively loose |6.2.1d| | 14 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 10 |
| Horn not working |1.7.3a| | 10 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Drive chain excessively tight |6.2.1d| | 6 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Registration plate lamp issues | 4 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 4 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Rear Brake disc|s| cracked |3.2.A1g| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Nearside Front Direction indicator not working |1.5.1c| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Offside Rear Direction indicator not working |1.5.1c| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 3 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 3 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 3 |
| Brake hose excessively deteriorated | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Stop lamp emits other than a steady red light |1.3.1b| | 3 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies front control |1.3.1a| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Rear Direction indicator not working |1.5.1c| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Indicator switch defective |1.5.4| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |