| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 21 |
| Front Brake excessively binding (1.2.1 (f)) | 13 |
| Horn not working (7.7 (a) (ii)) | 12 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 7 |
| Horn not working |7.7 |a| |ii|| | 7 |
| Rear reflector missing (4.8.2 (a) (ii)) | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Registration plate issues | 5 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 5 |
| Rear Position lamp not working (4.2.1 (a)) | 5 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 4 |
| Registration plate lamp issues | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Headlamp aim not tested (4.1.2 (b)) | 4 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Riders seat insecure (6.2.5 (a) (ii)) | 4 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 3 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Horn not working |1.7.3a| | 3 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 3 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Horn control not functioning. |1.7.2b| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Riders seat insecure |6.2.5 |a| |ii|| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Offside Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Steering lock stop ineffective Left Turn |2.1.3| | 1 |
| Steering lock stop ineffective Right Turn |2.1.3| | 1 |
| Front Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Front Brake caliper insecure rear pad location pin missing |1.1.16 |c| |i|| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Throttle operating incorrectly jammed |6.2.1f| | 1 |
| Central Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear suspension movement is excessively stiff rear shock is sticking down |2.4.A.3b| | 1 |
| Offside Front Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Offside Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired |5.1.3 |a| |ii|| | 1 |
| Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement front |6.1.8 |a| |i|| | 1 |
| Roller brake test brake efficiency less than 27.5% overall |1.2.2 |a| |ii|| | 1 |
| Front position lamp does not illuminate immediately when switched on Dip beam |1.1.3a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Brake lever attachment screws loose |3.1.2b| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Brake lever mounting insecure pivot bolt loose and lock nut missing |3.1.2a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Nearside Front Stop lamp not working rear brake light switch |4.3.1 |a| |ii|| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front suspension assembly component excessively bent |2.3.1| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Exhaust silencer likely to become detached heat shield is not bolted on |8.1.1 |b| |ii|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Fairings insecure and likely to impede the steering Front fender loose |2.1.2e| | 1 |
| Steering lock stop missing |2.1.3| | 1 |
| Nearside Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Front Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Steering lock stop missing |2.1.3| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Forks in such a condition that steering control is adversely affected |2.2.2 |d| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Brake lever insecure |1.1.2 |e| |i|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake lever excessively worn rear brake lever bent |1.1.15 |b|| | 1 |
| Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Brake disc contaminated rusty |1.1.14 |b|| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Front Brake hose excessively twisted (1.1.12 (b) (ii)) | 1 |
| Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Headlamp light intensity severely reduced Goes out when engine speed inreases on main beam. (4.1.4 (a)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Offside Rear Exhaust has a major leak of exhaust gases silencer has hole , weld cracked at pipe joint (6.1.2 (a)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Stop lamp not working front and rear (4.3.1 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure under floor panel (6.1.1 (b) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure main stand return spring missing (6.1.1 (b) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Nearside Front Stop lamp not working switch (4.3.1 (a) (ii)) | 1 |
| Rear Brake lever is damaged and the brake cannot be readily applied (3.1.3c) | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Decelerometer brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn swing arm (5.3.4 (a) (i)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected very high idle speed (6.2.7 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Nearside Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Brake cable insecure (1.1.15 (c)) | 1 |
| Central Front Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Rear Brake lever excessively worn (1.1.15 (b)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Exhaust has a major leak of exhaust gases Underside of silencer rusted away. (6.1.2 (a)) | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Offside Footrest insecure pillion footrest insecure (6.2.12 (a)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Offside 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 |
| Offside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Central Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling rear end moving (2.4 (a)) | 1 |
| Nearside Front Stop lamp does not illuminate by the operation of both brake controls switch (4.3.2 (a) (iii)) | 1 |
| Central Rear Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced (6.1.1 (b) (ii)) | 1 |
| Horn sound not in accordance with requirements Affected by the operation of another lamp (7.7 (c)) | 1 |
| Steering operation impeded by a fairing (2.1.4 (e)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Nearside Front Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced side stand (6.1.1 (b) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Brake lever excessively corroded (1.1.15 (b)) | 1 |
| Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Horn not working switch faulty (7.7 (a)) | 1 |
| Nearside Rear Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect wrong type bulb fitted (4.1.2 (c)) | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |