| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 35 |
| Headlamp aim out of alignment | 30 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 16 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 15 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 14 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 11 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 11 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Steering headbearing has excessive free play |2.2.2| | 10 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 10 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 10 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Rear reflector missing (4.8.2 (a) (ii)) | 9 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 8 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 8 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 8 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 8 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 8 |
| Brake hose damaged | 7 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Rear reflector on motorcycle obscured |1.4.2b| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 6 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 6 |
| Horn not working (7.7 (a) (ii)) | 6 |
| Registration plate issues | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 5 |
| Nearside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 5 |
| Stop lamp remains on when the brakes are released | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 5 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 5 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Offside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 4 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 4 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 4 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Headlamp aim not tested (4.1.2 (b)) | 4 |
| Horn not working |1.7.3a| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 3 |
| Brake hose excessively deteriorated | 3 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 3 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 3 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 3 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 3 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 3 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 3 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 3 |
| Brake performance not tested (1.2.1 (g)) | 3 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 3 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| All direction indicators not working (4.4.1 (a) (ii)) | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Nearside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Offside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 2 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Horn control not functioning. |1.7.2b| | 2 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| Handlebar mounting clamp loose |2.1.1a| | 2 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 2 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Riders seat insecure |6.2.5 |a| |ii|| | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Exhaust system insecure |6.1.2 |a|| | 2 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Offside Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Brake grabbing severely (1.2.1 (c)) | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Nearside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Front Steering operation restricted in free movement from lock to lock loose brake hose restricting free movment (2.1.4 (c)) | 2 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |