| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Registration plate issues | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Nearside Front suspension assembly component missing |2.3.1| | 1 |
| Offside Front suspension assembly component missing |2.3.1| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Centre Rear Lower Brake pedal insecure |3.1.2a| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Built up wheel has a bolt/s missing |4.2.1c| | 1 |
| Front Brake lever pivots excessively worn |3.1.3a| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Brake back plate|s| insecure |3.2.A1j| | 1 |
| Front Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Exhaust mounting does not fully support the exhaust system Both rear Colton reel mount s lose |7.1.1.c| | 1 |
| Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Front Brake drum|s| insecure |3.2.A1g| | 1 |
| Central Front Upper Steering operation impeded by a leg shield |2.1.4 |e|| | 1 |
| Central Front Upper Steering linkage locking device ineffective |2.1.3 |d|| | 1 |
| Central Front Upper Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Nearside Rear Lower Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Offside Rear Lower Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Registration plate lamp issues | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Front Brake caliper damaged and braking performance affected (1.1.16 (a) (ii)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort (3.3.A1d) | 1 |
| Front wheel spindle securing nut(s) loose (2.3.5a) | 1 |
| Front Front wheel spindle loose (2.3.5a) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |