| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 25 |
| Rear Brake excessively binding (1.2.1 (f)) | 15 |
| Registration plate lamp issues | 14 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 9 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 9 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 9 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Horn not working (7.7 (a) (ii)) | 7 |
| Front Brake excessively binding (1.2.1 (f)) | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 7 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 6 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 5 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 5 |
| Stop lamp remains on when the brakes are released | 5 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 5 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 5 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 4 |
| Riders seat insecure (6.2.5 (a) (ii)) | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 3 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Brake lever insecure (1.1.2 (e) (i)) | 3 |
| Rear Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 3 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 3 |
| Headlamp aim not tested (4.1.2 (b)) | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 3 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 3 |
| Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 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 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 2 |
| Front Brake grabbing severely (1.2.1 (c)) | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Registration plate issues | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Offside Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 2 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 2 |
| Rear Brake caliper inadequately mounted (1.1.16 (c) (i)) | 2 |
| Steering operation linkage fouling when handlebars turned from lock to lock HITTING WIRE CABLES (2.1.4 (a)) | 2 |
| Front Horn not working (7.7 (a) (ii)) | 2 |
| Rear Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 2 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 2 |
| Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 2 |
| Front Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 2 |
| Front Brake lever excessively worn |1.1.15 |b|| | 1 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Exhaust silencer insecure touching swingarm (8.1.1 (b) (i)) | 1 |
| Steering operation restricted in free movement from lock to lock Steer impeded by clutch cable miss routing (2.1.4 (c)) | 1 |
| Stop lamp not working via brake pedal (4.3.1 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn SWING ARM BUSHES ( EXCESSIVE MOVEMENT AND DANGEROUS ) (5.3.4 (a) (i)) | 1 |
| Rear Stop lamp not working rear brake light does not come on when brake is applied (4.3.1 (a) (ii)) | 1 |
| Front Brake component insecure brake hose insecure (1.1.21 (c)) | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure bottom fairing insecure (6.1.1 (b) (i)) | 1 |
| Rear Brake hose leaking (1.1.12 (c)) | 1 |
| Rear Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Stop lamp not working control 2 (4.3.1 (a) (ii)) | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Throttle operating incorrectly sticks and too much free play (6.2.7 (a) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure bolts missing front fender (6.1.1 (b) (i)) | 1 |
| Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Nearside Rear Drive chain excessively tight, so that it is likely to fail |6.1.7 |k| |ii|| | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected loose on bars (6.2.7 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Brake hose excessively deteriorated | 1 |
| Front Brake caliper inadequately mounted TAB WASHERS (1.1.16 (c) (i)) | 1 |
| Nearside Front Handlebar excessively deformed fowling tank |2.2.1 |c| |i|| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Direction indicator adversely affected by the operation of another lamp all |4.4.3 |b|| | 1 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Suspension arm pin or bush excessively worn (Swing Arm Bushes) (5.3.4 (a) (i)) | 1 |
| Nearside Handlebar retaining device loose (Needs Tightening) (2.2.1 (b) (i)) | 1 |
| Rear Road spring corroded so that its cross sectional area is reduced and seriously weakened (5.3.1 (b) (i)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort brake roller indicates warped brake disc (1.2.1 (e)) | 1 |
| Rear Brake pedal has insufficient reserve travel excessive travel in rear brake pedal (1.1.2 (a)) | 1 |
| Suspension attachment bracket/mounting insecure Play rear wheel - Swing arm spindle tightened (5.3.3 (a) (i)) | 1 |
| Front All direction indicators incorrect colour Flashing white - Lens painted orange (4.4.3 (a)) | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle / switch rotating on bar, switch gear lose - Secured switch (6.2.7 (a) (ii)) | 1 |
| Rear Suspension component pin or bush excessively worn Swinging arm has excessive lateral play (5.3.4 (a) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Position lamp not working |4.2.1 |a|| | 1 |
| Rear Wheel hub excessively worn Cush rubbers worn (5.2.1 (b) (i)) | 1 |
| Offside Brake lever excessively worn (1.1.15 (b)) | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Fuel pipe leaking (6.1.3 (b) (i)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Lower Brake excessively binding (1.2.1 (f)) | 1 |
| Central Front Lower Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Offside Front Lower Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Central Rear Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake grabbing severely binding badly (1.2.1 (c)) | 1 |
| Front Horn not working horn not working (7.7 (a)) | 1 |
| Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Nearside Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Nearside Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Stop lamp not working On either control |4.3.1 |a| |ii|| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Valve stem seriously damaged Perrished & split (5.2.3 (j)) | 1 |
| Nearside Suspension attachment bracket/mounting insecure front shock clamp (5.3.3 (a) (i)) | 1 |
| Offside Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Offside Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Offside Stop lamp not working hand control (4.3.1 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Steering operation restricted in free movement from lock to lock speedo cable (2.1.4 (c)) | 1 |
| Rear Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Shock absorber has a serious fluid leak both front (5.3.2 (b)) | 1 |
| Steering operation restricted in free movement from lock to lock fouling on wiring loom (2.1.4 (c)) | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Central Front Horn not working |7.7 |a| |ii|| | 1 |
| Front Shock absorber has an excessively worn bush fork bushes (5.3.2 (c)) | 1 |
| Rear Drive chain sprocket so loose it is likely to fail bolt missing (6.1.7 (c) (ii)) | 1 |
| Brake hose connection leaking Banjo bolt on rear master cylinder leaking (1.1.12 (c)) | 1 |
| Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort disc warped (1.2.1 (e)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Lower Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Front All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Stop lamp not working rear stop light comes on then off when brake applied |4.3.1 |a| |ii|| | 1 |
| Steering operation restricted in free movement from lock to lock traps cables and hoses on right lock |2.1.4 |c|| | 1 |
| Offside Front Handlebar retaining device missing right h/bar has pin lock position mount missing/broken/bent |2.2.1 |b| |i|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Wheel bearing has excessive play sprocket carrier bearing worn to excess |5.1.3 |a| |i|| | 1 |
| Offside Handlebar grip insecure to handlebar throttle housing assembly not secured to h/bar |2.2.1 |d| |ii|| | 1 |
| Exhaust system insecure centre mount fixing missing/corroded |6.1.2 |a|| | 1 |
| Nearside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Rear Drive chain sprocket excessively loose cush drive (6.1.7 (c) (i)) | 1 |
| Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Front Position lamp missing (4.2.1 (a)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Brake performance not tested (1.2.1 (g)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Suspension arm insecurely attached swing arm (5.3.3 (a) (i)) | 1 |
| Rear Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Front Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Upper All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Offside Front Position lamp switch does not operate in accordance with the requirements (4.2.2 (a)) | 1 |
| Nearside Front Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Position lamp switch does not illuminate all position lamps with a single operation (4.2.2 (a)) | 1 |
| Front Wheel spindle loose |5.2.1 |c| |i|| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Brake pedal attachment screws missing. |3.1.2b| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Exhaust has a major leak of exhaust gases exhaust manifold gasket missing (6.1.2 (a)) | 1 |
| Throttle operating incorrectly not returning (6.2.7 (a) (i)) | 1 |
| Central Rear Stop lamp does not illuminate by the operation of both brake controls rear brake light requires adjustment, late to illuminate (4.3.2 (a) (iii)) | 1 |
| Offside Handlebar so insecure it is likely to become detached |2.2.1 |b| |ii|| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Rear Brake caliper inadequately mounted no locking device |1.1.16 |c| |i|| | 1 |
| Rear Suspension arm pin or bush excessively worn swing arm bushes |5.3.4 |a| |i|| | 1 |
| Rear Exhaust system insecure rubbing on rear swing arm |6.1.2 |a|| | 1 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Upper Fork yoke insecure |2.2.2 |d| |i|| | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Headlamp not working on dipped beam R/H |4.1.1 |a| |ii|| | 1 |
| Front Valve stem seriously damaged Perrished & split |5.2.3 |j|| | 1 |
| Front Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Rear Suspension component pin or bush excessively worn Swingarm pivot |5.3.4 |a| |i|| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Rear Wheel excessively distorted |5.2.2 |c| |i|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Stop lamp showing white light to the rear (4.3.3 (a) (ii)) | 1 |
| Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Brake master cylinder defective but brake still operating |1.1.10 |b| |i|| | 1 |
| Headlamp aim not tested HEADLIGHT NOT WORKING ON DIP OR HIGH BEAM |4.1.2 |b|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake pivot has restricted free movement (1.1.15 (e)) | 1 |
| Suspension component has excessive wear or free play Swing arm has excessive play on suspension bush |5.3.3 |d|| | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Stop lamp not working lever (4.3.1 (a) (ii)) | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected when on l/h lock (1.1.2 (b) (ii)) | 1 |
| Stop lamp not working on either control (4.3.1 (a) (ii)) | 1 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Suspension component pin or bush excessively worn swing arm bushes excessively worn |5.3.4 |a| |i|| | 1 |
| Rear Stop lamp not working out of adjustment (4.3.1 (a) (ii)) | 1 |
| Nearside Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Offside Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Suspension arm pin or bush excessively worn swinging arm bushes (5.3.4 (a) (i)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Front Lower Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Shock absorber likely to become detached (5.3.2 (a) (ii)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Throttle operating incorrectly Loose (6.2.7 (a) (i)) | 1 |
| Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Brake caliper inadequately mounted Locking tabs (1.1.16 (c) (i)) | 1 |
| Rear Drive chain sprocket so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Stop lamp not working front and rear (4.3.1 (a) (ii)) | 1 |
| Nearside Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Nearside Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Handlebar restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Rear Lower Suspension arm ball joint excessively worn swing arm bushes (5.3.4 (a) (i)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Nearside Rear Direction indicator missing |4.4.1 |a| |ii|| | 1 |
| Offside Front Direction indicator missing |4.4.1 |a| |ii|| | 1 |