| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 63 |
| Headlamp aim out of alignment | 19 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 15 |
| Registration plate issues | 13 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 12 |
| Registration plate lamp issues | 10 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 9 |
| Front Brake excessively binding (1.2.1 (f)) | 8 |
| Rear Brake excessively binding (1.2.1 (f)) | 8 |
| Horn not working (7.7 (a)) | 7 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 5 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 5 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 5 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear Footrest missing (6.2.12 (a)) | 3 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 3 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 3 |
| Handlebar mounting insecure |2.2.1 |a| |i|| | 2 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 2 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Central Rear Lower Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Nearside Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Drive chain sprocket worn to excess drive rubbers excessively worn, excessive movement |6.1.7 |c| |i|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Nearside Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Fuel cap ineffective |6.1.3 |b| |i|| | 1 |
| Nearside Rear Footrest missing Fit footrest (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing Fit rear footrest (6.2.12 (a)) | 1 |
| Rear Rear reflector missing Fit rear reflector (4.8.2 (a) (ii)) | 1 |
| Nearside Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Headlamp reflector missing (4.1.1 (b) (ii)) | 1 |
| Stop lamp not working REAR BRAKE (4.3.1 (a) (ii)) | 1 |
| Offside Front Upper Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Nearside Rear Drive chain sprocket so loose it is likely to fail Rear cush drive rubbers badly worn (6.1.7 (c) (ii)) | 1 |
| Nearside Rear Drive chain excessively loose Chain dangerously loose (6.1.7 (c) (i)) | 1 |
| Rear Headlamp reflector missing (4.1.1 (b) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Drive chain excessively tight Badly rusty and seized links impeding rear wheel rotation (6.1.7 (k) (i)) | 1 |
| Nearside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Drive chain sprocket excessively loose sprocket rubbers (6.1.7 (c) (i)) | 1 |
| Front Brake lever is positioned so that the brake cannot be readily applied Lever fixed too low as it hits the switch gear (1.1.2 (d)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Offside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Nearside Front Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Nearside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Nearside Rear Lower Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Front Engine mounting/bracket fractured (6.1.8 (a) (ii)) | 1 |
| Motorcycle structure is so deformed it is likely to adversely affect braking or steering (6.1.1 (a) (ii)) | 1 |
| Nearside Upper Fork yoke in such a condition that steering control is adversely affected (2.2.2 (d) (ii)) | 1 |
| Nearside Upper Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied end stop bolt broken and pedal inoperative (1.1.2 (d)) | 1 |
| Central Front Lower Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Rear Footrest missing Both (6.2.12 (a)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Rear Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned not far enough apart need to be 180MM (4.4.3 (a)) | 1 |
| Offside Rear Lower Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Front Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front Steering linkage component insecure (2.1.3 (a) (i)) | 1 |
| Nearside Front Drive chain sprocket so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Brake cylinder has no reserve travel and braking performance affected (1.1.16 (e) (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 |
| Nearside Front Lower Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Front Lower Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Rear Lower Brake excessively binding (1.2.1 (f)) | 1 |
| Wheel spindle locking device ineffective (5.2.1 (d)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Fuel hose leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned Less than 180mm at the rear (4.4.3 (a)) | 1 |
| Shock absorber has a serious fluid leak fork seals (5.3.2 (b)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Brake cylinder has no reserve travel and braking performance affected intermittently operating, no brake whatsover (1.1.16 (e) (ii)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Brake lever is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Headlamp insecure Reseated on bottom mounts & adjusted aim (4.1.1 (c)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Central Rear Suspension arm pin or bush likely to become detached (5.3.4 (a) (ii)) | 1 |
| Central Rear Suspension component pin or bush likely to become detached Swingarm bolt (5.3.4 (a) (ii)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Brake performance not tested (1.2.1 (g)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested dip beam inop (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam dip beam not working (4.1.1 (a) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls CONTROL ONE DOES NOT OPERATE BRAKE LIGHT (4.3.2 (a) (iii)) | 1 |
| Front Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Rear Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Throttle operating incorrectly THROTTLE OPERATING ON STEERING LOCK (6.2.7 (a) (i)) | 1 |