| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Registration plate lamp issues | 8 |
| Horn not working (7.7 (a)) | 8 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Horn not working (7.7 (a) (ii)) | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Front Position lamp not working (4.2.1 (a)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 4 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Registration plate issues | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| All direction indicators not working (4.4.1 (a) (ii)) | 3 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 3 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 3 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Throttle operating incorrectly to much play (6.2.7 (a) (i)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Wheel more than one fixing missing (5.2.1 (a) (ii)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Footrest missing (6.2.12 (a)) | 1 |
| Throttle operating incorrectly revs up when steering left (6.2.7 (a) (i)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn Shock swing arm movement excessive. (5.3.4 (a) (i)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Drive chain sprocket so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Offside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Stop lamp not working with both controls (4.3.1 (a) (ii)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Drive belt pulley so loose it is likely to fail Carrier (6.1.7 (c) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Nearside Front Direction indicator not working intermitant (4.4.1 (a) (ii)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced rear subframe (6.1.1 (b) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Central Rear Lower Suspension component pin or bush excessively worn linkage. (5.3.4 (a) (i)) | 1 |
| Offside Rear Lower Brake pedal so insecure that the brake cannot be readily applied brake pivote bolt loose (1.1.2 (e) (ii)) | 1 |
| Central Front Lower Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Fuel system component leaking excessively or a risk of fire excessive oil leak, leaking onto exhaust system. (6.1.3 (b) (ii)) | 1 |
| Handlebar restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Brake lever pivot has excessive free play (1.1.1 (b)) | 1 |
| Front Wheel spindle locking device ineffective (5.2.1 (d)) | 1 |
| Rear Suspension arm ball joint excessively worn SWING ARM BUSHES (5.3.4 (a) (i)) | 1 |
| Offside Rear Footrest insecure Split pin missing (6.2.12 (a)) | 1 |
| Throttle operating incorrectly Cable routing incorrect (6.2.7 (a) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Inner Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Handlebar so insecure it is likely to become detached yokes loose (2.2.1 (b) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Offside Front Lower Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Steering operation impeded by a fairing (2.1.4 (e)) | 1 |
| Front Shock absorber has a serious fluid leak both (5.3.2 (b)) | 1 |
| Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Brake disc significantly and obviously worn pulsing on lever and uneven braking readings (1.1.14 (a) (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Offside Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Steering headbearing excessively stiff or notchy Wheel raised, nothcy when turning (2.2.2 (f) (i)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Rear Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort Dangerous (1.2.1 (e)) | 1 |
| Nearside Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |