| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 20 |
| Headlamp aim out of alignment | 18 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 18 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 7 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Registration plate issues | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Nearside Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Offside Exhaust has part of the system missing Mounting bolt and spacer missing |7.1.1a| | 1 |
| Exhaust mounting missing Mounting bolt and spacer missing |7.1.1c| | 1 |
| Offside Front Brake lever cannot be released smoothly Brake lever not releasing fully |3.1.3d| | 1 |
| Offside Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil Fork leaking oil, rag has been wrapped around to catch oil. |2.3.3| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Stop lamp not working front control |4.3.1 |a| |ii|| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Offside Front Brake lever attachment screws missing |3.1.2b| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Offside Front 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 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Motorcycle structure has a fracture which is likely to adversely affect braking or steering front mudguard insecure |6.1.1 |a| |ii|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Stop lamp does not illuminate immediately a brake applies not working form front brake |1.3.1a| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Headlamp aim not tested |4.1.2 |b|| | 1 |
| Rear Stop lamp not working switch faulty |4.3.1 |a| |ii|| | 1 |
| Rear Shock absorber insecurely attached |5.3.2 |a| |i|| | 1 |
| Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Throttle operating incorrectly Reving to high adjusted cable |6.2.1f| | 1 |
| Nearside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear suspension component loose |2.4.A.1a| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Nearside Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Offside Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working Left hand control (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Headlamp aim projected beam image obviously incorrect incorrect type kickup to the right (4.1.2 (c)) | 1 |
| Headlamp light intensity severely reduced main and dip beam (4.1.4 (a)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |