| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 22 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Registration plate issues | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Horn not working |1.7.3a| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Rear Brake component defective due to a deliberate modification which significantly reduces the original strength |3.1.5| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake pedal attachment screws missing. |3.1.2b| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Brake performance not tested |3.3| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Offside Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Drive chain horseshoe locking device likely to become detached rivet joining link not fitted securely. link next to joining link not securely fitted either |6.1.7 |j| |ii|| | 1 |
| Exhaust has part of the system missing baffles missing |7.1.1a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Brake lever insecure lock nut missing |3.1.2a| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Upper Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Headlamp aim beam image too far to the right |1.6.4| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies stop light does not work when front brake applied |1.3.1a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake lever pivots excessively worn Front brake lever pivot pin insecure |3.1.3a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Horn missing |1.7.1| | 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 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Fuel pipe union leaking |7.2.1a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak FORK SEAL (5.3.2 (b)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Position lamp switch does not operate the front and rear position lamps |1.1.4c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Brake component insecure Rear brake fluid reservoir |1.1.21 |c|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Front Upper Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Stop lamp not working Rear brake light not working (4.3.1 (a) (ii)) | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Stop lamp not working off front lever (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |