| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 34 |
| Stop lamp remains on when the brakes are released | 23 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 16 |
| Front Brake excessively binding (1.2.1 (f)) | 13 |
| Registration plate lamp issues | 12 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 9 |
| Front Brake excessively binding |1.2.1 |f|| | 8 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 7 |
| Registration plate issues | 6 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Headlamp insecure (4.1.1 (c)) | 5 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 4 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 4 |
| Horn not working (7.7 (a)) | 4 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 3 |
| Nearside Front Brake excessively binding (1.2.1 (f)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 2 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Offside Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 2 |
| Rear Brake lever has insufficient reserve travel Adjusted. |1.1.2 |a|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak Fork seal (5.3.2 (b)) | 1 |
| Headlamp aim not tested High and low beam not working (4.1.2 (b)) | 1 |
| Riders seat with a defective supporting structure (6.2.5 (a) (i)) | 1 |
| Throttle operating incorrectly sticks open does not return to stop on its own (6.2.7 (a) (i)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied BROKEN (1.1.2 (d)) | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Brake lever has restricted free movement |1.1.15 |e|| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp not working both (4.3.1 (a) (ii)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Nearside Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Offside Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Rear Brake lining|s| less than 1.0 mm thick |1.1.13 |a|| | 1 |
| Suspension component attachment bracket/mounting damaged and seriously weakened |5.3.3 |b| |i|| | 1 |
| Nearside Rear Brake lever is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Offside Front Brake lever is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake drum significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Central Front Upper Engine mounting/bracket excessively loose (6.1.8 (a) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Rear Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Central Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Fork yoke excessively deformed (2.2.2 (d) (i)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Suspension component ball joint excessively worn silent block (5.3.4 (a) (i)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Front Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear Footrest insecure (6.2.12 (a)) | 1 |
| Offside Front Position lamp not working |4.2.1 |a|| | 1 |
| Offside Front Stop lamp not working not operating from front brake controls (4.3.1 (a) (ii)) | 1 |
| Nearside Position lamp likely to become detached (4.2.1 (c) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls not working off front brake (4.3.2 (a) (iii)) | 1 |
| Nearside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Brake component modification adversely affecting braking performance Brake disc is too small, contact patch with pads significantly reduced (1.1.21 (d) (ii)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Suspension arm pin or bush excessively worn SWINGING ARM BEARINGS (5.3.4 (a) (i)) | 1 |
| Front Position lamp likely to become detached (4.2.1 (c) (ii)) | 1 |
| Offside Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Rear Suspension component pin or bush excessively worn `silent block` stabiliser |5.3.4 |a| |i|| | 1 |
| Stop lamp not working From front brake |4.3.1 |a| |ii|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Brake lever has insufficient reserve travel control (1.1.2 (a)) | 1 |
| Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Rear Stop lamp not working rear lever (4.3.1 (a) (ii)) | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Rear Brake drum in such a condition that it is seriously weakened (1.1.14 (a) (ii)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Headlamp light intensity severely reduced head lamp has dark tint fitted (4.1.4 (a)) | 1 |
| Horn sound not in accordance with requirements horn is not loud enough to be heard by other road users (7.7 (c)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Headlamp reflector seriously defective MELTED (4.1.1 (b) (ii)) | 1 |
| Nearside Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Brake disc insecure Missing mounting bolt (1.1.14 (a) (ii)) | 1 |
| Headlamp aim not tested bulb blown |4.1.2 |b|| | 1 |
| Steering headbearing has excessive wear or free play excessive freeplay |2.2.2 |f| |i|| | 1 |
| Front Headlamp reflector seriously defective (4.1.1 (b) (ii)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Nearside Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Throttle operating incorrectly not self return (6.2.7 (a) (i)) | 1 |
| Offside Position lamp not working (4.2.1 (a)) | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Nearside Front Position lamp lens seriously defective |4.2.1 |b|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Nearside Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Nearside Direction indicator not working both (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working x2 (4.3.1 (a) (ii)) | 1 |
| Nearside Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |