| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 45 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 41 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 32 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 26 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 24 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 21 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 18 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 16 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 16 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Horn not working |1.7.3a| | 13 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 13 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 10 |
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 9 |
| Offside Rear Direction indicator not working |1.5.1c| | 8 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 8 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Nearside Front Direction indicator not working |1.5.1c| | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Riders seat insecure |6.2.1a| | 7 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 7 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 6 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 6 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Registration plate issues | 6 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 6 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Offside Front Direction indicators not working |1.5.1c| | 5 |
| Nearside Rear Direction indicators not working |1.5.1c| | 5 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Fuel cap sealing washer missing |7.2.2c| | 5 |
| Nearside Front Direction indicators not working |1.5.1c| | 5 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 4 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 4 |
| Exhaust excessively deteriorated |7.1.1a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 4 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 4 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 4 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 3 |
| Registration plate lamp issues | 3 |
| Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Offside Front Direction indicator missing |1.5.1a| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 2 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Rear Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Nearside Direction indicators not working |1.5.1c| | 2 |
| Nearside Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Horn control not functioning. |1.7.2b| | 2 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Offside Front Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Nearside Front Direction indicator missing |1.5.1a| | 2 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Offside Direction indicator not working |1.5.1c| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Nearside Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Front Direction indicator not working |1.5.1c| | 2 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| An item not tested |Manual| | 2 |
| Rear Direction indicator not working |1.5.1c| | 2 |