| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 41 |
| Registration plate issues | 23 |
| Registration plate lamp issues | 16 |
| Headlamp aim out of alignment | 13 |
| Rear reflector missing |4.8.2 |a| |ii|| | 12 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 8 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 5 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 3 |
| Offside Rear Footrest missing (6.2.12 (a)) | 3 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 3 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Rear Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort 33% (1.2.1 (e)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling Rear wheel alignment (2.4 (a)) | 1 |
| Offside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Nearside Front Engine mounting/bracket excessively loose (6.1.8 (a) (ii)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Not working from the rear brake (4.3.2 (a) (iii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Headlamp light source and lamp not compatible LED bulb fitted (4.1.4 (c)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls not operating correctly from rear brake pedal (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Drive chain sprocket excessively loose |6.1.7 |c| |i|| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Central Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Central Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Front All position lamps not working (4.2.1 (a)) | 1 |
| Front Wheel bearing has excessive play front wheel bearings (5.1.3 (a) (i)) | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle unit loose on handlebars (6.2.7 (a) (ii)) | 1 |
| Offside Fork yoke fractured Lock stop broken off & trapping clutch cable (2.2.2 (d) (i)) | 1 |
| Front Direction indicator light intensity significantly reduced BOTH (4.4.3 (a)) | 1 |
| Offside Front Upper Throttle operating incorrectly Throttle sticking, adjusted handlebar end stop to correct (6.2.7 (a) (i)) | 1 |
| Central Rear Upper Rear reflector missing rear reflector missing -replaced as necessary (4.8.2 (a) (ii)) | 1 |
| Central Front Lower Brake excessively binding front brakes binding severely (1.2.1 (f)) | 1 |
| Nearside Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Handlebar grip insecure to handlebar Both grips loose. Reattached both. (2.2.1 (d) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Direction indicator not working LH Rear |4.4.1 |a| |ii|| | 1 |
| Rear Brake caliper insecure caliper bolt loose . (1.1.16 (c) (i)) | 1 |
| Offside Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Nearside Rear Drive chain excessively tight Chain tension too tight, re-adjusted to bring into tolerance (6.1.7 (k) (i)) | 1 |
| Central Front Wheel bearing has excessive play Front wheel bearings showing excessive play. Dangerous major failure. (5.1.3 (a) (i)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |