| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 54 |
| Brake hose damaged | 18 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 16 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 15 |
| Registration plate lamp issues | 15 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 12 |
| Stop lamp remains on when the brakes are released | 9 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 9 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 9 |
| Horn not working (7.7 (a) (ii)) | 9 |
| Registration plate issues | 8 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 8 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 7 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 7 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 6 |
| Riders seat insecure (6.2.5 (a) (ii)) | 6 |
| Horn not working |7.7 |a| |ii|| | 6 |
| Front Position lamp not working (4.2.1 (a)) | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 5 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Rear Brake excessively binding (1.2.1 (f)) | 4 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 4 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 4 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 4 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 4 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 4 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 4 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Horn sound not in accordance with requirements (7.7 (c)) | 3 |
| Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 3 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Headlamp insecure (4.1.1 (c)) | 3 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 3 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 2 |
| Steering headbearing excessively stiff or notchy notchy (2.2.2 (f) (i)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Offside Front Position lamp not working (4.2.1 (a)) | 2 |
| Offside Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Nearside Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front All position lamps not working (4.2.1 (a)) | 2 |
| Rear Brake lever has insufficient reserve travel control 2 reaches handlebar before meeting maximum effort (1.1.2 (a)) | 1 |
| Exhaust has a major leak of exhaust gases EGR valve pipe split (6.1.2 (a)) | 1 |
| Front Brake hose excessively damaged (1.1.12 (b) (ii)) | 1 |
| Offside Front Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Stop lamp not working on front brake |4.3.1 |a| |ii|| | 1 |
| Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Handlebar mounting so insecure that steering is adversely affected (2.2.1 (a) (ii)) | 1 |
| Stop lamp not working Front lever switch (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Stop lamp not working o s handle |4.3.1 |a| |ii|| | 1 |
| Rear Riders seat insecure |6.2.1a| | 1 |
| Stop lamp not working with rear brake applied (4.3.1 (a) (ii)) | 1 |
| Horn control defective |1.7.2a| | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Steering linkage ball joint worn to the extent there is a serious risk of detachment |2.1.3 |b| |ii|| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Stop lamp not working Front brake lever switch |4.3.1 |a| |ii|| | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Riders seat with a defective supporting structure (6.2.5 (a) (i)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Nearside Front Brake component insecure Front Brake hose securing arm not bolted in place |1.1.21 |c|| | 1 |
| Riders seat insecure DOESN`T LOCK |6.2.5 |a| |ii|| | 1 |
| Nearside Brake lever has insufficient reserve travel lever travel hit handlebar, adjusted at the garage (1.1.2 (a)) | 1 |
| Front Shock absorber has a serious fluid leak contaminating front brakes (5.3.2 (b)) | 1 |
| Nearside Locking devices not correctly fitted which may make the motor bicycle dangerous to ride air box not attached |6.2.1h| | 1 |
| Stop lamp not working on front brake lever |4.3.1 |a| |ii|| | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Front Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Front Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Nearside Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Nearside Position lamp not working |4.2.1 |a|| | 1 |
| Offside Position lamp not working |4.2.1 |a|| | 1 |
| Handlebar mounting so insecure that steering is adversely affected |2.2.1 |a| |ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected rough on lock to lock |2.2.2 |f| |ii|| | 1 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Fuel cap ineffective seal missing (6.1.3 (b) (i)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Front brake (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Central Front Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Nearside Rear Stop lamp adversely affected by the operation of another lamp |4.3.3 |b|| | 1 |
| Front Inner Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected FRONT BRAKE MASTER CYLINDER NEEDS SERVICING (1.1.2 (b) (ii)) | 1 |
| Brake indicates excessive fluctuation of brake effort warped disc |1.2.1 |e|| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen beam pattern upside down (4.1.2 (a)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected idle to high |6.2.7 |a| |ii|| | 1 |
| Rear Brake lever has insufficient reserve travel Brake lever touching grip. (1.1.2 (a)) | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Brake lever so insecure that the brake cannot be readily applied assembly lose on handlebars (1.1.2 (e) (ii)) | 1 |
| Offside Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Nearside Rear Motorcycle structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Rear Brake grabbing severely sticks on |1.2.1 |c|| | 1 |
| All direction indicators not working intermittent when steering turned. |4.4.1 |a| |ii|| | 1 |
| Fuel cap ineffective Seal missing (6.1.3 (b) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Upper Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Upper Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Central Front Lower Horn not working |1.7.3a| | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Front Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Forks in such a condition that steering control is adversely affected (2.2.2 (d) (ii)) | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Central Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Offside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Throttle operating incorrectly when turned on righthand lock (6.2.7 (a) (i)) | 1 |
| Nearside Front Direction indicator incorrect colour Clear bulb |4.4.3 |a|| | 1 |
| Nearside Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Handlebar retaining device loose |2.2.1 |b| |i|| | 1 |
| Rear Brake lever pivot has excessive free play locking nut missing off pivot (1.1.1 (b)) | 1 |
| Front Shock absorber has negligible damping effect no movement at all (5.3.2 (b)) | 1 |
| Stop lamp does not illuminate immediately a brake applies When front brake operated |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies When rear brake operated |1.3.1a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Exhaust has a major leak of exhaust gases front pipe (6.1.2 (a)) | 1 |
| Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Indicator switch inoperative wiring chaffing (4.4.2 (a) (ii)) | 1 |
| Central Front Lower Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Central Front Lower Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Central Rear Lower Brake excessively binding (1.2.1 (f)) | 1 |
| Central Rear Lower Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Steering operation impeded by a fairing steering lock bent out of position could lock steering while riding |2.1.4 |e|| | 1 |
| Front Stop lamp not working Brake lamp not working with front application (4.3.1 (a) (ii)) | 1 |
| Offside Direction indicator not working O/S indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Rear Rear position lamp incorrect colour |1.1.2b| | 1 |
| Nearside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Rear Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Front Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Rear Brake grabbing severely |1.2.1 |c|| | 1 |
| Stop lamp not working Not working off front brake control |4.3.1 |a| |ii|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Nearside Front Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Front Upper Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Central Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Central Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Steering linkage locking device ineffective |2.1.3 |d|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Nearside Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Stop lamp not working front brake switch not working (4.3.1 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases silencer in poor condition leaking (6.1.2 (a)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal leaking (5.3.2 (b)) | 1 |
| Nearside Front Fork yoke in such a condition that steering control is adversely affected steering stop not working (2.2.2 (d) (ii)) | 1 |
| Front Brake lagging in operation oil contaminated from leaking fork seal (1.2.1 (d)) | 1 |
| Rear Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |