| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 55 |
| Registration plate lamp issues | 8 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Front Brake excessively binding |1.2.1 |f|| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Registration plate issues | 5 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 5 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 5 |
| Stop lamp remains on when the brakes are released | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Rear Upper Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 3 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 3 |
| Upper Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Rear Brake fluid contaminated (1.8 (a)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Upper Shock absorber has an excessively worn bush (5.3.2 (c)) | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 2 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Wheel damaged or distorted to the extent that control of the motorcycle is likely to be adversely affected |5.2.2 |c| |ii|| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Horn not working |1.7.3a| | 2 |
| Headlamp insecure |4.1.1 |c|| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Rear Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 2 |
| Position lamp not working (4.2.1 (a)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Suspension rod pin or bush excessively worn Upper |5.3.4 |a| |i|| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Suspension rod pin or bush excessively worn Shock absorber top mounting bush |5.3.4 |a| |i|| | 1 |
| Nearside Front Floor brake test indicates a sticking brake caliper seized on slider pins |3.3.C2c| | 1 |
| Offside Front Floor brake test indicates a sticking brake caliper seized on slider pins |3.3.C2c| | 1 |
| Rear Floor brake test indicates a sticking brake caliper seized on slider pins |3.3.C2c| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Brake fluid not visible |1.1.10 |d| |iii|| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Drive chain sprocket excessively loose sprocket carrier bearing |6.1.7 |c| |i|| | 1 |
| Rear Upper Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Central Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Central Front Horn not working |1.7.3a| | 1 |
| Rear Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Drive belt fouling another component rear pulley damaged |6.2.1d| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Drive chain so worn it is likely to fail Chain is very loose, could potentially come off. |6.1.7 |c| |ii|| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Central Rear Drive belt worn to excess |6.1.7 |c| |i|| | 1 |
| Front Brake fluid contaminated |1.8 |a|| | 1 |
| Rear Brake fluid contaminated |1.8 |a|| | 1 |
| Front Brake excessively binding Front Brake ; Excessively binding. |1.2.1 |f|| | 1 |
| Rear Brake grabbing severely Rear Brake ; Excessively binding |1.2.1 |c|| | 1 |
| Drive chain worn to excess Drive chain & Sprockets Excessively worn , Tight spot also noted. |6.1.7 |c| |i|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Rear suspension bush has excessive free play Upper mono-shock bush |2.4.A2a|i|| | 1 |
| Front Shock absorber has a serious fluid leak both fork legs |5.3.2 |b|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal |5.3.2 |b|| | 1 |
| Rear Shock absorber insecurely attached |5.3.2 |a| |i|| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Rear Direction indicator missing |4.4.1 |a| |ii|| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Central Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort 30kgf variation |1.2.1 |e|| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Headlamp aim headlamp damaged and function impaired Bulb loose in holder securing clip broken |1.2.3a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Nearside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Offside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Offside Front Brake cylinder insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Drive belt so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Wheel excessively distorted laterally and eccentrically distorted beyond limits (5.2.2 (c) (i)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Brake master cylinder reservoir cap missing (1.1.10 (e)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp light intensity severely reduced Scattered image (4.1.4 (a)) | 1 |
| Front Steering damper in such a condition that the steering action is adversely affected (2.1.4 (d) (ii)) | 1 |
| Rear Brake master cylinder reservoir cap missing (1.1.10 (e)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Headlamp light source and lamp not compatible led bulb fitted (4.1.4 (c)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Shock absorber has an excessively worn bush upper bush (5.3.2 (c)) | 1 |
| Offside Front Shock absorber has a serious fluid leak fork (5.3.2 (b)) | 1 |
| Rear Upper Suspension component ball joint excessively worn Top shock bush has excessive play (5.3.4 (a) (i)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Drive chain sprocket so loose it is likely to fail Front and rear sprockets (6.1.7 (c) (ii)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Headlamp aim projected beam image obviously incorrect bulb fitted incorrectly (4.1.2 (c)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Central Rear Upper Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Drive belt so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Drive belt worn to excess Belt torn (6.1.7 (c) (i)) | 1 |
| Nearside Front Brake caliper leaking and braking performance affected (1.1.16 (b) (ii)) | 1 |
| Offside Front Brake caliper leaking and braking performance affected (1.1.16 (b) (ii)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork oil seal (5.3.2 (b)) | 1 |
| Rear Upper Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Suspension component pin or bush excessively worn top shock mount (5.3.4 (a) (i)) | 1 |
| Rear Suspension component 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 Shock absorber has an excessively worn bush both top and bottom shock mounting bushes (5.3.2 (c)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Upper Suspension damaged and seriously weakened (5.3.3 (b) (i)) | 1 |
| Central Rear Lower Wheel more than one fixing loose Both pinch bolts loose, tightened to secure and torqued correctly to manufactures specifications. (5.2.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Rear Brake pedal has insufficient reserve travel has too much travel (1.1.2 (a)) | 1 |