| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 27 |
| Registration plate issues | 8 |
| Rear reflector missing (4.8.2 (a) (ii)) | 8 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Horn not working (7.7 (a) (ii)) | 6 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 5 |
| Rear Position lamp not working (4.2.1 (a)) | 5 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Front Position lamp not working (4.2.1 (a)) | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Front Brake excessively binding |1.2.1 |f|| | 3 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Fuel system component leaking (6.1.3 (b) (i)) | 3 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 3 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 3 |
| Headlamp insecure |1.2.3b| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Front Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 2 |
| Brake pedal has insufficient reserve travel |1.1.2 |a|| | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Fuel cap leaking (6.1.3 (b) (i)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Registration plate lamp issues | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Nearside Brake lever insecure |3.1.2a| | 1 |
| Offside Brake lever insecure |3.1.2a| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake |1.3.1a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Horn not working |1.7.3a| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear suspension component excessively corroded. swing arm
|2.4.A.1a| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Fuel system component insecure tank insecure |7.2.1b| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Brake locking device missing rear brake plate lever bolt missing |3.2.A1e| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Indicator tell tale not functioning missing |1.5.2| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride clutch lever bolt no nut |6.2.1h| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride no spilt pin rear brake |6.2.1h| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake locking device insecure Torque arm |3.2.A1e| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Front Brake cable knotted Incorrect routing |3.2.A1b| | 1 |
| Brake reaction bracket securing bolt|s| loose securing pin missing |3.2.A1j| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Drive chain fouling another component Main stand |6.2.1d| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded Brake cable jamming. |3.2.A1h| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Central Front Lower Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Nearside Rear Lower Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Lower Footrest missing |6.2.12 |a|| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Rear Brake pedal has excessive side movement indicating a badly worn bearing or pivot |3.3.A.1d| | 1 |
| Front Brake pipe inadequately clipped flexy |3.6.B.1| | 1 |
| Service brake: efficiency below requirements |3.7.C.1a| | 1 |
| Steering system fouling horn unit |2.2.D.2a| | 1 |
| rear brake recording little or no effort both |3.7.B.5a| | 1 |
| Front Brake lever has inadequate reserve travel |9.3.1f| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies brake swich |1.3.1a| | 1 |
| Drive chain sprocket carrier worn to excess bearing |6.2.1e| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |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 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Brake lever insecure |1.1.2 |e| |i|| | 1 |
| Steering operation restricted in free movement from lock to lock Trapped cables |2.1.4 |c|| | 1 |
| Offside Rear Lower Shock absorber likely to become detached |5.3.2 |a| |ii|| | 1 |
| Offside Rear Lower Suspension component pin or bush likely to become detached |5.3.4 |a| |ii|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| All direction indicators not working Flashing incorrectly |4.4.1 |a| |ii|| | 1 |
| Rear Lower Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Stop lamp light intensity significantly reduced |4.3.3 |a| |ii|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Rear Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Front position lamp incorrect colour Blue bulb fitted |1.1.2a| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Normal but fitted to rear hub, no locking device |6.2.1h| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Drive chain horseshoe locking device likely to become detached replaced both split pins front and rear wheels |6.1.7 |j| |ii|| | 1 |
| Front Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Rear Brake pedal insecure missing split pin and washer |1.1.2 |e| |i|| | 1 |
| Rear Wheel fixing missing |single fixing| |5.2.1 |a| |ii|| | 1 |
| Fork yoke insecure |2.2.2 |d| |i|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Offside Front Stop lamp not working repaired at station |4.3.1 |a| |ii|| | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure BRAKE ROD |6.1.1 |b| |i|| | 1 |
| Front Wheel spindle or securing nut|s| so insecure that wheel security or steering control is adversely affected locking devise missing |5.2.1 |c| |ii|| | 1 |
| Rear Wheel spindle or securing nut|s| so insecure that wheel security or steering control is adversely affected locking devise missing |5.2.1 |c| |ii|| | 1 |
| Nearside Front Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Offside Rear Brake component insecure rear brake stay arm no split pin |1.1.21 |c|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Wheel spoke excessively loose |5.2.2 |d|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Drive chain excessively tight, so that it is likely to fail |6.1.7 |k| |ii|| | 1 |
| Position lamp adversely affected by the operation of another lamp |4.2.3 |b|| | 1 |
| Front Brake cylinder insecure |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 lining|s| less than 1.0 mm thick |1.1.13 |a|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Handlebar so insecure it is likely to become detached |2.2.1 |b| |ii|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake component inadequately mounted |1.1.21 |c|| | 1 |
| Brake performance not tested |1.2.1 |g|| | 1 |
| Nearside Rear Brake disc contaminated |1.1.14 |b|| | 1 |
| Service brake effort inadequate at a wheel both rear |1.2.1 |a| |i|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Nearside Front Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Lower Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced Swingingarm, drive shaft mount seriously corroded. (6.1.1 (c) (i)) | 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 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Wheel spoke excessively bent (5.2.2 (d)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Nearside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Stop lamp not working control (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working control (4.3.1 (a) (ii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure locking device missing on rear brake arm (6.1.1 (b) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Offside Front Steering operation restricted in free movement from lock to lock brake hose fouling (2.1.4 (c)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Wheel more than one fixing missing wheel spindle locking nut split pin missing (5.2.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak forks (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak fork (5.3.2 (b)) | 1 |
| Rear Steering damper in such a condition that the steering action is adversely affected rear swing arm has no movement (2.1.4 (d) (ii)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Vehicle identification number has more than one different number displayed (0.2 (c)) | 1 |
| Headlamp missing (4.1.1 (a) (ii)) | 1 |
| Front All direction indicators obviously incorrectly positioned distance between indicators less than required (4.4.3 (a)) | 1 |
| Suspension attachment bracket/mounting insecure excess movement in swing arm bushes (5.3.3 (a) (i)) | 1 |
| Nearside Rear Suspension rod attachment bracket/mounting damaged and seriously weakened rod guide disassembled (5.3.3 (b) (i)) | 1 |
| Front Steering linkage component modified such that the steering is adversely affected (2.1.3 (f) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering over to right (2.4 (a)) | 1 |
| Offside Rear Upper Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Brake rod insecure rear brake tie rod (1.1.15 (c)) | 1 |
| Brake component insecure rear brake tie rod missing split pin (1.1.21 (c)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Offside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| All position lamps not working front and rear (4.2.1 (a)) | 1 |
| Engine mounting/bracket excessively loose (6.1.8 (a) (ii)) | 1 |
| Front Brake cable damaged nipple missing (1.1.15 (a)) | 1 |
| Throttle operating incorrectly STICKY THROTTLE (6.2.7 (a) (i)) | 1 |
| Nearside Chain guard insecure (6.1.7 (i)) | 1 |
| Nearside Rear Upper Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Rear Brake rod insecure brake rod adjustment nut likely to com detached (1.1.15 (c)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls BRAKE LEAVER (4.3.2 (a) (iii)) | 1 |
| Front Brake caliper leaking and braking performance affected (1.1.16 (b) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Wheel spindle locking device ineffective bolt loose (5.2.1 (d)) | 1 |
| Headlamp not working on main beam Dipswitch broken (4.1.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Rear reflector reflecting white to the rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Brake component inadequately mounted safety locking pin missing from front torque arm mount (1.1.21 (c)) | 1 |
| Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Rear Horn not working (7.7 (a)) | 1 |
| Rear Shock absorber likely to become detached (5.3.2 (a) (ii)) | 1 |
| Offside Front Upper Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Rear Brake component insecure Brake torque arm locking device missing (1.1.21 (c)) | 1 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 1 |