| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 52 |
| Headlamp aim out of alignment | 48 |
| Registration plate issues | 47 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 14 |
| Rear Position lamp not working (4.2.1 (a)) | 11 |
| Registration plate lamp issues | 11 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 10 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 9 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 8 |
| Stop lamp not working (4.3.1 (a) (ii)) | 8 |
| Horn not working (7.7 (a)) | 8 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 7 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 7 |
| Front Brake excessively binding (1.2.1 (f)) | 6 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 6 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 6 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Horn not working (7.7 (a) (ii)) | 5 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 5 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 4 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| 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)) | 3 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 3 |
| Offside Rear Footrest missing (6.2.12 (a)) | 3 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 3 |
| Position lamp not working (4.2.1 (a)) | 3 |
| Offside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 3 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 2 |
| Front Wheel spoke excessively loose (5.2.2 (d)) | 2 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 2 |
| Nearside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 2 |
| Nearside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Rear Brake caliper insecurely mounted and braking performance affected caliper retaining bolt loose (1.1.16 (c) (ii)) | 1 |
| Rear All position lamps not working no plate lamp (4.2.1 (a)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Brake hose connection leaking (1.1.12 (c)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Central Front Upper Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Horn not working horn missing (7.7 (a) (ii)) | 1 |
| Throttle operating incorrectly not returning to idle position (6.2.7 (a) (i)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Rear Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Throttle operating incorrectly Throttle staying open on full lock (6.2.7 (a) (i)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Stop lamp missing (4.3.1 (a) (ii)) | 1 |
| Offside Rear Lower Stop lamp not working Rear Brake Light Not Working (4.3.1 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Direction indicator not working O/S/F (4.4.1 (a) (ii)) | 1 |
| Throttle operating incorrectly Throttle sticking at right hand lock (6.2.7 (a) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect dipping to wrong side (4.1.2 (c)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Stop lamp not working Does not work when rear brake applied. (4.3.1 (a) (ii)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Footrest insecure left and right pillion foot peg hanger found insecure. (6.2.12 (a)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle cable found too tight, sticking on full lock, right hand turn. (6.2.7 (a) (ii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle sticking open when on full lock (6.2.7 (a) (ii)) | 1 |
| Nearside Front Brake indicates excessive fluctuation of brake effort front nearside disc out of true (1.2.1 (e)) | 1 |
| Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Nearside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Rear Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Front Stop lamp not working control (4.3.1 (a) (ii)) | 1 |
| Central Front Lower Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Handlebar grip insecure to handlebar left grip insecure, needs gluing back down (2.2.1 (d) (ii)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Offside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Offside Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Central Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Horn sound not in accordance with requirements Horn missing (7.7 (c)) | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Stop lamp with a multiple light source more than 1/2 not functioning (4.3.1 (a) (ii)) | 1 |
| Offside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Position lamp missing (4.2.1 (a)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Handlebar grip insecure to handlebar Heated grip loose. (2.2.1 (d) (ii)) | 1 |
| Offside Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Rear Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Offside Footrest insecure bolt missing (6.2.12 (a)) | 1 |
| Rear Drive chain excessively tight Adjusted drive chain as too tight. (6.1.7 (k) (i)) | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Rear Wheel spindle locking device ineffective (5.2.1 (d)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Horn not working missing (7.7 (a)) | 1 |