| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 41 |
| Drive chain excessively loose |6.2.1d| | 14 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 11 |
| Rear reflector missing (4.8.2 (a) (ii)) | 11 |
| Drive chain worn to excess |6.2.1e| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Stop lamp remains on when the brakes are released | 7 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 7 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 7 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Registration plate issues | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Offside Rear Footrest missing |6.2.1a| | 5 |
| Front Position lamp not working (4.2.1 (a)) | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 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 |
| Front Brake excessively binding |1.2.1 |f|| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 4 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 3 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Stop lamp does not illuminate immediately a brake applies rear brake |1.3.1a| | 2 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Drive chain sprocket worn to excess |6.2.1e| | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Rear Drive chain excessively tight |6.2.1d| | 2 |
| Brake hose excessively deteriorated | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 2 |
| Rear Brake pedal insecure (1.1.2 (e) (i)) | 2 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Central Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Drive chain sprocket worn to excess both |6.2.1e| | 1 |
| Front Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Central Rear Upper Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Suspension arm attachment bracket/mounting insecure swing arm bolt/shaft wrong size |5.3.3 |a| |i|| | 1 |
| Front Front position lamp insecure |1.1.1c| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Steering lock stop maladjusted |2.1.3| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Front Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Front Lower Engine mounting/bracket missing (6.1.8 (a) (ii)) | 1 |
| Chain guard insecure (6.1.7 (i)) | 1 |
| Rear Brake component insecure split pin missing brake control arm (1.1.21 (c)) | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Stop lamp does not illuminate immediately a brake applies front |1.3.1a| | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied rear |3.1.3c| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Offside Front Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Brake master cylinder leaking brake fluid level window deteriorated (1.1.10 (b) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp dipped beam affected by the operation of another lamp comes on and off when moving handle bars |wiring loom issue| |1.2.2c| | 1 |
| Headlamp insecure dip bulb no in place |1.2.3b| | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride sprocket bolts missing |6.2.1h| | 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 |
| Decelerometer brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Offside Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Rear Upper Direction indicators not working |1.5.1c| | 1 |
| Central Rear Upper Stop lamp does not illuminate immediately a brake applies Rear brake switch faulty |1.3.1a| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Brake cylinder cracked (1.1.16 (a) (i)) | 1 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Front Brake caliper operating mechanism has excessive travel (1.1.16 (e) (i)) | 1 |
| Stop lamp does not illuminate immediately a brake applies Control 2. Pedal control |1.3.1a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Rear brake stop light (4.3.2 (a) (iii)) | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Offside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Wheel alignment incorrect which adversely affects the steering Steering twisted. (2.4 (a)) | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Handlebar grip insecure to handlebar Left side grip loose (2.2.1 (d) (ii)) | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Handlebar excessively deformed |2.2.1 |c| |i|| | 1 |
| Footrest missing front and rear o/s and n/s (6.2.12 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride wrong direction |6.2.1h| | 1 |
| Offside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Exhaust system insecure hitting rear wheel spindle (6.1.2 (a)) | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Exhaust silencer likely to become detached |8.1.1 |b| |ii|| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp does not emit a steady light front brake control |1.3.1b| | 1 |
| Nearside Rear Shock absorber likely to become detached (5.3.2 (a) (ii)) | 1 |
| Front Headlamp lens seriously defective Light beam at an angle, suggesting lens fitment issue (4.1.1 (b) (ii)) | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working when operating rear brake (4.3.1 (a) (ii)) | 1 |
| Front Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected revs increase on full lock |6.2.7 |a| |ii|| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Rear Brake pedal pivot excessively tight (1.1.1 (a)) | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Suspension arm pin or bush excessively worn swing arm |5.3.4 |a| |i|| | 1 |
| Front suspension fouling which affects the movement of the front suspension. L Plate fouling front suspension - remove and remount L Plate on Mudguard. |2.3.6a| | 1 |
| Rear suspension bearing has excessive free play Swinging Arm Pin Loose - Tighten Bolt - Advise Customer to check periodically |2.4.A2a|i|| | 1 |
| Fuel system component leaking carb overflow possible sticking float |6.1.3 |b| |i|| | 1 |
| Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Nearside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Nearside Front Upper Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected Stiff and Notchy |2.2.2 |f| |ii|| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 1 |
| Front Brake hose excessively damaged (1.1.12 (b) (ii)) | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease Contaminated because its rusty. Needs good clean up |3.2.A1k| | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Stop lamp does not illuminate immediately a brake applies stop lamp does not work with front brake applied |1.3.1a| | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Headlamp aim not tested lens insecure in housing |4.1.2 |b|| | 1 |
| Stop lamp not working from control 2 |4.3.1 |a| |ii|| | 1 |
| Headlamp aim not tested dipped beam not working (4.1.2 (b)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls stop light not working from front brake (4.3.2 (a) (iii)) | 1 |
| Central Rear Position lamp not working (4.2.1 (a)) | 1 |
| Brake master cylinder insecure spy glass cracked. (1.1.10 (c)) | 1 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake applied |1.3.1a| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Registration plate lamp issues | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Brake fluid reservoir fluid not visible |1.1.10 |d| |iii|| | 1 |
| Forks in such a condition that steering control is adversely affected twisted in yokes (2.2.2 (d) (ii)) | 1 |
| All direction indicators adversely affected by the operation of another lamp battery dead (4.4.3 (b)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls battery dead (4.3.2 (a) (iii)) | 1 |
| Horn sound not in accordance with requirements battery dead (7.7 (c)) | 1 |
| Brake linkage excessively corroded sticks on (1.1.15 (b)) | 1 |
| Brake grabbing severely linkage seized (1.2.1 (c)) | 1 |
| Wheel alignment incorrect which adversely affects the handling on rear wheel adjusters (2.4 (a)) | 1 |
| Drive chain worn to excess tight rusted solid links (6.1.7 (c) (i)) | 1 |
| Direction indicator affected by the operation of another lamp indicators stop work when brakes applied |1.5.1c| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Front position lamp does not illuminate immediately when switched on sidelight |1.1.3a| | 1 |
| Offside Front Brake lever is so short that the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Nearside Front Wheel excessively damaged |5.2.2 |c| |i|| | 1 |
| Rear Stop lamp likely to become detached |4.3.1 |c| |ii|| | 1 |
| Central Front Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Central Front Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Nearside Rear Upper Shock absorber insecurely attached |5.3.2 |a| |i|| | 1 |
| Central Rear Position lamp likely to become detached |4.2.1 |c| |ii|| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Upper Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Handlebar handgrip not secure to handlebars. GLUED DURING TEST |2.1.1c| | 1 |
| Nearside Direction indicator not working intermittant (4.4.1 (a) (ii)) | 1 |
| Offside Direction indicator not working intermittant (4.4.1 (a) (ii)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |