| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Registration plate lamp issues | 17 |
| Rear Brake excessively binding (1.2.1 (f)) | 14 |
| Rear reflector missing (4.8.2 (a) (ii)) | 11 |
| Rear Brake excessively binding |1.2.1 |f|| | 9 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 7 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 6 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Registration plate issues | 6 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 5 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 5 |
| Rear reflector missing |4.8.2 |a| |ii|| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 5 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 4 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Handlebar deformed |2.1.1b| | 3 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 3 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 3 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 2 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Clutch lever shortened so it cannot be readily operated (6.2.7 (b)) | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Rear Brake grabbing severely |1.2.1 |c|| | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Brake caliper has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Offside Rear Footrest missing (6.2.12 (a)) | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Rear Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 2 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 2 |
| Headlamp insecure (4.1.1 (c)) | 2 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Rear reflector on motorcycle obscured |1.4.2b| | 2 |
| Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 2 |
| Rear Stop lamp switch with a delay in operation not working on rear brake (4.3.2 (a) (ii)) | 1 |
| Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock Left steering lock stop missing |2.1.4 |b|| | 1 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake lever is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Front Brake disc insecure (1.1.14 (a) (ii)) | 1 |
| Rear Brake rod insecure (1.1.15 (c)) | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Drive chain sprocket so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Suspension rod attachment bracket/mounting likely to fail Rear suspension is completely seized (5.3.3 (b) (ii)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Motorcycle structure joining/attachment plate or fastening insecure PANEL LOOSE (6.1.1 (b) (i)) | 1 |
| Nearside Rear Position lamp likely to become detached (4.2.1 (c) (ii)) | 1 |
| Rear Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Fuel cap leaking (6.1.3 (b) (i)) | 1 |
| Rear Suspension component mounting modified so the suspension is inoperative |5.3.3 |c| |ii|| | 1 |
| Front shock absorber seal failed and leaking oil l/h fork. |2.3.3| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Offside Rear Inner Exhaust has a major leak of exhaust gases corroded..bad repair (6.1.2 (a)) | 1 |
| Central Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Forks excessively deformed |2.2.2 |d| |i|| | 1 |
| Handlebar excessively deformed |2.2.1 |c| |i|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Shock absorber has negligible damping effect Rear shock has no damping. |5.3.2 |b|| | 1 |
| Rear Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Rear Drive chain worn to excess Severe tight spots on chain. |6.1.7 |c| |i|| | 1 |
| Rear Brake pedal pivot excessively worn |1.1.1 |b|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake |1.3.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Fuel cap ineffective sealing ring (6.1.3 (b) (i)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock left lock (2.1.4 (b)) | 1 |
| Headlamp aim not tested light not working on dip (4.1.2 (b)) | 1 |
| Footrest missing both rear missing (6.2.12 (a)) | 1 |
| Rear Brake pedal pivot has excessive free play washer and locking device missing (1.1.1 (b)) | 1 |
| Offside Front Footrest insecure split pin missing from mounting pin (6.2.12 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the steering wheel off to o/s (2.4 (a)) | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Brake hose excessively damaged (1.1.12 (b) (ii)) | 1 |
| Fuel system component leaking carb and clip isnt done up loose (6.1.3 (b) (i)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Position lamp not working Rear Tail Light Not Working (4.2.1 (a)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Brake linkage has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Front Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Rear Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Throttle operating incorrectly Engine rpm effected by steering on full right hand lock (6.2.7 (a) (i)) | 1 |
| Headlamp aim not tested dip beam not working (4.1.2 (b)) | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Wheel spindle loose |5.2.1 |c| |i|| | 1 |
| Offside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Rear Brake fluid not visible (1.1.10 (d) (iii)) | 1 |
| Rear Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Horn not working |1.7.3a| | 1 |
| Brake pedal pivot excessively worn (1.1.1 (b)) | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Stop lamp not working With hand control (4.3.1 (a) (ii)) | 1 |
| Drive chain so loose it is likely to fail guide roller bolt loose under chain at frame (6.1.7 (c) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Rear Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Fuel system component leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Brake performance not tested |3.3| | 1 |
| Front Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Exhaust mounting missing heat shield retain bolt missing next to riders right leg |7.1.1c| | 1 |
| Front shock absorber seal failed and leaking oil both seals leaking and no damping effect |2.3.3| | 1 |
| Rear wheel rotation likely to be impeded wheel bearing collapsed |6.2.1b| | 1 |
| Front Stop lamp does not emit a steady light does not illuminate off front brake |1.3.1b| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Brake pedal pivot excessively worn (1.1.1 (b)) | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect LINKAGES SEIZED (5.3.2 (b)) | 1 |
| Offside Brake pedal pivot excessively worn (1.1.1 (b)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Headlamp aim not tested DIP BEAM NOT WORKING (4.1.2 (b)) | 1 |
| Fuel hose leaking (6.1.3 (b) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Suspension component mounting modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Forks excessively deformed front fork legs realigned (2.2.2 (d) (i)) | 1 |
| Nearside Rear Drive chain sprocket worn to excess Rear sprocket teeth worn to excess. (6.1.7 (c) (i)) | 1 |
| All direction indicators incorrect colour |4.4.3 |a|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen no image (4.1.2 (a)) | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |front brake switch| |1.3.1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Brake disc|s| excessively worn MIN 3mm |3.2.A1l| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Headlamp aim headlamp deteriorated and function impaired Scattered pattern |1.2.3a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Brake pedal insecure |1.1.2 |e| |i|| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Nearside Steering operation fouling on the fuel tank or bodywork on full lock lock stop broken |2.1.4 |b|| | 1 |
| Offside Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering handlebars (2.4 (a)) | 1 |
| Rear Brake hose leaking (1.1.12 (c)) | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Exhaust is leaking and excessively noisey front and centre |7.1.1b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride chain link |6.2.1h| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Drive chain sprocket so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Steering headbearing excessively stiff or notchy excessive notch felt with weight on front wheel |2.2.2 |f| |i|| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied brake pedal bent higher than footrest if foot rests on pedal brake applies |1.1.2 |d|| | 1 |
| Rear Drive chain so worn it is likely to fail chain worn to excess no adjustment left and is starting to ride loose on sprockets |6.1.7 |c| |ii|| | 1 |
| Front Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Drive chain sprocket so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| 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)) | 1 |
| Brake performance not tested chain adjusters loose .chain excessively tight may cause damage if brake test carried out (1.2.1 (g)) | 1 |
| Nearside Front Suspension component pin or bush excessively worn fork leg bush (5.3.4 (a) (i)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Front Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment excessive travel on rear pedal. rod liable to drop out of cylinder (1.1.15 (f)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear Valve stem seriously damaged valve stem perished (5.2.3 (j)) | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Throttle operating incorrectly engine revs increase when steering turned to right (6.2.7 (a) (i)) | 1 |