| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Rear reflector missing (4.8.2 (a) (ii)) | 11 |
| Registration plate lamp issues | 9 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 8 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 8 |
| Registration plate issues | 7 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 3 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 3 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Shock absorber has negligible damping effect sticks in operation (5.3.2 (b)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Shock absorber has negligible damping effect stiff or seized linkage (5.3.2 (b)) | 1 |
| Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Stop lamp not working When front brake applied (4.3.1 (a) (ii)) | 1 |
| Offside Rear Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Suspension rod mounting modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central Rear Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Central Rear Lower Suspension arm pin or bush excessively worn sized rear suspension link arm |5.3.4 |a| |i|| | 1 |
| Offside Front Stop lamp not working brake light switch not working |4.3.1 |a| |ii|| | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Central Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Brake lagging in operation on brake roller test front brake lever comes back to handlebar (1.2.1 (d)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure clutch lever bolt loose nut missing on bottom (6.1.1 (b) (i)) | 1 |
| Rear Suspension component likely to fail rear suspenion very stiff to move (5.3.3 (b) (ii)) | 1 |
| Front Brake caliper inadequately mounted and braking performance affected caliper mounting bracket hitting brake disc (1.1.16 (c) (ii)) | 1 |
| Rear Wheel spindle locking device missing split pin missing (5.2.1 (d)) | 1 |
| Nearside Front Wheel fixing missing (single fixing) wheel spacer missing (5.2.1 (a) (ii)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake caliper cracked caliper bracket (1.1.16 (a) (i)) | 1 |
| Lower Drive chain worn to excess chain roller worn down to metal (6.1.7 (c) (i)) | 1 |
| Front Wheel spindle locking device missing split pin missing (5.2.1 (d)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Stop lamp not working Rear (4.3.1 (a) (ii)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Offside Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Rear Brake component modification unsafe incorrect rear brake disc fitted. disc size is incorrect(too small) causing less than 50% contact of pad surface. (1.1.21 (d) (i)) | 1 |
| Nearside Front Wheel fixing missing (single fixing) wheel spindle nut securing split pin missing (5.2.1 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect rear suspension unit does not return,sticking down. (5.3.2 (b)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside 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 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Suspension rod pin or bush excessively worn suspension linkage slightly stickey not returning fulley |5.3.4 |a| |i|| | 1 |
| Rear Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Nearside Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Front Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected revs high no control (6.2.7 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Clutch lever shortened so it cannot be readily operated too stiff to pull in easily in emergancy (6.2.7 (b)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Suspension rod pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Front Wheel fixing missing (single fixing) (5.2.1 (a) (ii)) | 1 |
| Front Brake disc fractured |1.1.14 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Handlebar so insecure it is likely to become detached L/H bar clamp loose. (2.2.1 (b) (ii)) | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake lever has insufficient reserve travel Very spongy |1.1.2 |a|| | 1 |
| Front Stop lamp not working Switch |4.3.1 |a| |ii|| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted fitted with open end in direction of drive (6.1.7 (j) (i)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Suspension component modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |