| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Horn not working (7.7 (a) (ii)) | 5 |
| Registration plate issues | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies switch at foot pedal was sticking |1.3.1a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls hand brake (4.3.2 (a) (iii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake pedal insecure (1.1.2 (e) (i)) | 1 |
| Offside Footrest insecure (6.2.12 (a)) | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Throttle operating incorrectly cables fouling yoke (6.2.7 (a) (i)) | 1 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Brake component is excessively corroded caliper seized on slider |3.1.5| | 1 |
| Headlamp light intensity severely reduced no beam image (4.1.4 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Headlamp light intensity severely reduced main beam (4.1.4 (a)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Front Engine mounting/bracket missing (6.1.8 (a) (ii)) | 1 |
| Offside Front Engine mounting/bracket missing (6.1.8 (a) (ii)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Throttle operating incorrectly sticking o/s lock |6.2.1f| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 1 |
| Registration plate lamp issues | 1 |
| Nearside Front Upper Horn not working (7.7 (a)) | 1 |
| Nearside Rear Upper Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Offside Rear Lower Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Motorcycle structure is fractured and structural rigidity is significantly reduced Rear Hugger Insecure offside front (6.1.1 (a) (i)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Lower All position lamps not working (4.2.1 (a)) | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Brake pipe inadequately supported |BRAKE PIPE OVER FRONT FENDER| |3.2.B2b| | 1 |
| Central Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Exhaust has a major leak of exhaust gases Split on header pipe (6.1.2 (a)) | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Central Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Central Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Offside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Due to loose grip |6.2.7 |a| |ii|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |