| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 21 |
| Headlamp aim beam image kick up to the offside |1.6| | 14 |
| Steering headbearing has excessive free play |2.2.2| | 12 |
| Brake hose excessively deteriorated | 7 |
| Front Brake excessively binding |1.2.1 |f|| | 4 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 4 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 4 |
| Offside Front Direction indicator with a multiple light source more than 1/2 not functioning |4.4.1 |a| |ii|| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp insecure (4.1.1 (c)) | 3 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 3 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Headlamp light source and lamp not compatible kick up to the right |4.1.4 |c|| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front Direction indicator with a multiple light source more than 1/2 not functioning |4.4.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Steering headbearing has excessive free play loose |2.2.2| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen Headlamp kick up to the right |4.1.2 |a|| | 1 |
| Central Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Registration plate issues | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake hose excessively damaged |1.1.12 |b| |ii|| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear wheel rotation likely to be impeded Mudguard insecure |6.2.1b| | 1 |
| Steering linkage locking device ineffective steering stops not affective |2.1.3 |d|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Front Direction indicator deteriorated and function impaired less than 50% of lamp is working |1.5.3a| | 1 |
| Front Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Front Direction indicator incorrect colour both |4.4.3 |a|| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies flickers on/off when lever operated |1.3.1a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen kick up to the right (4.1.2 (a)) | 1 |
| Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Brake hose excessively damaged inner hose exposed (1.1.12 (b) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Throttle operating incorrectly throttle housing not secured to h/bar |6.2.1f| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen has right hand kick up |4.1.2 |a|| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Nearside Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Twist grip housing loose! (6.2.7 (a) (ii)) | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| 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 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Handlebar mounting so insecure that steering is adversely affected |2.2.1 |a| |ii|| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp light intensity severely reduced on dipped and main beams (4.1.4 (a)) | 1 |
| Nearside Front All direction indicators light intensity significantly reduced 1 out of 4 leds working (4.4.3 (a)) | 1 |
| Rear Brake lever is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Offside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Registration plate lamp issues | 1 |
| Front 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 |
| Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |