| Most common failures | No# failures |
|---|
| Registration plate issues | 10 |
| Headlamp aim out of alignment | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear suspension component loose spring cups |2.4.A.1a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Brake component leaking fluid |3.2.B4| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Horn not working |1.7.3a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Position lamp switch insecure |1.1.4b| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Brake locking device missing Both pad retaining pin `r` clips missing. |3.2.A1e| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Fuel system component insecure Tank |7.2.1b| | 1 |
| Direction indicators not working all |1.5.1c| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 1 |
| Front Horn control defective |1.7.2a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies front brake light switch faulty |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Suspension arm attachment bracket/mounting insecure |5.3.3 |a| |i|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Offside Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Offside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Headlamp lens seriously defective dipping to right |4.1.1 |b| |ii|| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Central Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Central Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| All direction indicators adversely affected by the operation of another lamp takes out red light when flashing (4.4.3 (b)) | 1 |
| Forks modification unsafe mudgaurd missing allowing forks to flex (2.2.2 (e)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel touching bars when pulled (1.1.2 (a)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Headlamp aim not tested No dipped beam. (4.1.2 (b)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Wheel fixing loose (multiple fixings) (5.2.1 (a) (i)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure wheel spindle nut split pin missing (6.1.1 (b) (i)) | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure brake disc nuts tab washer not turn over (6.1.1 (b) (i)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Brake hose leaking Lower ferrule leaking where pipe meets joint. (1.1.12 (c)) | 1 |
| Drive chain horseshoe locking device likely to become detached missing (6.1.7 (j) (ii)) | 1 |
| Offside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Nearside Front Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Nearside Direction indicator not working Front and rear (4.4.1 (a) (ii)) | 1 |
| Fuel cap leaking (6.1.3 (b) (i)) | 1 |
| Rear Brake component insecure Raer torsion arm nut loose (1.1.21 (c)) | 1 |
| Rear Brake component insecure torque arm (1.1.21 (c)) | 1 |
| Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Nearside Front Inner Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |