| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 63 |
| Registration plate lamp issues | 27 |
| Front Brake excessively binding (1.2.1 (f)) | 26 |
| Stop lamp remains on when the brakes are released | 24 |
| Front Brake excessively binding |1.2.1 |f|| | 18 |
| Registration plate issues | 16 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 13 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 9 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 8 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Riders seat insecure |6.2.5 |a| |ii|| | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 4 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Horn sound not in accordance with requirements (7.7 (c)) | 3 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 3 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 3 |
| Headlamp aim not tested (4.1.2 (b)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Riders seat insecure (6.2.5 (a) (ii)) | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 3 |
| Exhaust system insecure (6.1.2 (a)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 3 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 3 |
| Offside Front Position lamp not working |4.2.1 |a|| | 3 |
| Front Headlamp aim not tested (4.1.2 (b)) | 2 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Front Lower Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement silencer block mount (6.1.8 (a) (i)) | 1 |
| Front wheel spindle securing nut locking device missing WHEEL SPINDLE PINCH BOLT MISSING AND ONE IS LOOSE |2.3.5a| | 1 |
| Central Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Stop lamp not working front brake |4.3.1 |a| |ii|| | 1 |
| Offside Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Brake excessively binding front wheel does not spin freely |1.2.1 |f|| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Nearside Brake lever insecure Brake lever pivot bolt broken and locking but missing (1.1.2 (e) (i)) | 1 |
| Offside Front Position lamp not working (4.2.1 (a)) | 1 |
| Position lamp not working |4.2.1 |a|| | 1 |
| Brake back plate insecure |1.1.14 |d|| | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Handlebar grip insecure to handlebar throttle grip |2.2.1 |d| |ii|| | 1 |
| Rear Lower Suspension component attachment bracket/mounting damaged and seriously weakened (5.3.3 (b) (i)) | 1 |
| Offside Front Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on number plate |1.1.3a| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Exhaust system insecure Both bolts sheared off in crankcase |6.1.2 |a|| | 1 |
| Exhaust silencer likely to become detached |8.1.1 |b| |ii|| | 1 |
| Steering headbearing has excessive wear or free play Head races are very notchy |2.2.2 |f| |i|| | 1 |
| Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Front Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Front Position lamp not working BOTH (4.2.1 (a)) | 1 |
| Throttle operating incorrectly throttle is sticky and not returning at low revs (6.2.7 (a) (i)) | 1 |
| Front Brake excessively binding shows30kgf no brake applied,also cant spin wheel when raised off ground (1.2.1 (f)) | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Stop lamp lens defective such that the emitted light is adversely affected (4.3.1 (b) (ii)) | 1 |
| Front Wheel excessively damaged (5.2.2 (c) (i)) | 1 |
| Offside Front Direction indicator lens defective such that the emitted light is adversely affected Bulb not seated correctly (4.4.1 (b) (ii)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Forks excessively deformed (2.2.2 (d) (i)) | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Brake lever insecure |1.1.2 |e| |i|| | 1 |
| Brake cable damaged |1.1.15 |a|| | 1 |
| Engine mounting/bracket excessively loose |6.1.8 |a| |ii|| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Nearside Front All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Nearside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Fuel cap ineffective RUBBER SEAL MISSING (6.1.3 (b) (i)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Front Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Brake lever has insufficient reserve travel Rear brake |1.1.2 |a|| | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Rear Brake lever has insufficient reserve travel Rear brake lever has no reserve travel |1.1.2 |a|| | 1 |
| Handlebar deformed to the extent that steering is affected handle bars out of alignment |2.2.1 |c| |ii|| | 1 |
| Front Brake lever is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Brake caliper insecurely mounted and braking performance affected |1.1.16 |c| |ii|| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Rear Brake lever pivot has excessive free play (1.1.1 (b)) | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Throttle operating incorrectly sticking |6.2.7 |a| |i|| | 1 |
| Offside Front Brake lever is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement |6.1.8 |a| |i|| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride seat lock not working |6.2.1h| | 1 |
| Nearside Brake lever mounting insecure |3.1.2a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Suspension attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Central Front Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Brake caliper inadequately mounted (1.1.16 (c) (i)) | 1 |
| Front Dipswitch does not operate immediately when selected on main beam |4.1.3 |b|| | 1 |
| Offside Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Brake cable insecure | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Front Brake has no recorded effort at a wheel front brake is inoperative (1.2.1 (a) (ii)) | 1 |
| Rear Brake lever has insufficient reserve travel incorrect rear brake cable fitted incorrectly (1.1.2 (a)) | 1 |
| Rear Brake cylinder has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Nearside Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake cable damaged (1.1.15 (a)) | 1 |
| Front Headlamp not working on main beam replaced bulb (4.1.1 (a) (ii)) | 1 |
| Front Headlamp reflector seriously defective (4.1.1 (b) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |