| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 42 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 18 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 13 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 11 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 8 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 6 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 6 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 5 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 3 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Registration plate issues | 3 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 2 |
| Rear Brake lining(s) less than 1.0 mm thick shoes worn past limit (1.1.13 (a)) | 2 |
| Drive chain worn to excess chain and sprockets worn (6.1.7 (c) (i)) | 2 |
| Drive chain excessively loose rear carrier/cush drives worn (6.1.7 (c) (i)) | 2 |
| Front Brake disc contaminated (1.1.14 (b)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Direction indicator not working R/H/F (4.4.1 (a) (ii)) | 1 |
| Chain guard insecure (6.1.7 (i)) | 1 |
| Suspension arm attachment bracket/mounting insecure swinging arm (5.3.3 (a) (i)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Front Lower Motorcycle structure modified such that it is likely to adversely affect braking or steering L Plate catching on front wheel - moved and secured to correct (6.1.1 (d) (ii)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Insecure to handlebar (6.2.7 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal leaking (5.3.2 (b)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Front Brake lever pivot excessively tight (1.1.1 (a)) | 1 |
| Nearside Footrest insecure (6.2.12 (a)) | 1 |
| Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Nearside Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Handlebar restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Nearside Rear Inner Wheel hub excessively worn rear hub cush drive rubbers worn in excess giving to much free play between hub and wheel (5.2.1 (b) (i)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls not working with rear brake pedal (4.3.2 (a) (iii)) | 1 |
| Rear Drive chain worn to excess rear chain dangerously loose (6.1.7 (c) (i)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Brake rod has restricted free movement (1.1.15 (e)) | 1 |
| Nearside Rear Wheel bearing has excessive play Sprocket carrier bearing (5.1.3 (a) (i)) | 1 |
| Suspension damaged and seriously weakened swinging arm damaged (5.3.3 (b) (i)) | 1 |
| Nearside Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Drive chain worn to excess Drive Chain worn out (6.1.7 (c) (i)) | 1 |
| Offside Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Rear Stop lamp not working front lever (4.3.1 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam incorrectly wired in (4.1.3 (b)) | 1 |
| Wheel spindle locking device missing Rear torque arm bolt split pin missing.. (5.2.1 (d)) | 1 |
| Dipswitch does not operate immediately when selected on main beam incorrectly wired in. (4.1.3 (b)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Switch gear incorrectly fitted. (6.2.7 (a) (ii)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Offside Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Nearside Rear Suspension damaged and seriously weakened (5.3.3 (b) (i)) | 1 |
| Offside Front Upper Throttle operating incorrectly throttle over adjusted on R/H lock - adjusted so now functions as it should (6.2.7 (a) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect dip beam / main beam (4.1.2 (c)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Drive chain sprocket so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Suspension component pin or bush likely to become detached (5.3.4 (a) (ii)) | 1 |
| Nearside Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Riders seat insecure seat insecure at front (6.2.5 (a) (ii)) | 1 |
| Rear Brake component insecure (1.1.21 (c)) | 1 |
| Offside Front Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Nearside Rear Drive chain horseshoe locking device likely to become detached CHAIN PLATE AND CLIP LINK MISSING,CHAIN WORN TO EXCESS (6.1.7 (j) (ii)) | 1 |
| Nearside Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Front Motorcycle structure joining/attachment plate or fastening insecure FRONT FAIRING INSECURE ,FASTENERS MISSING (6.1.1 (b) (i)) | 1 |
| Nearside Footrest insecure front and rear (6.2.12 (a)) | 1 |
| Offside Footrest insecure front and rear (6.2.12 (a)) | 1 |
| Brake component inadequately mounted rear torque arm locking device missing (1.1.21 (c)) | 1 |
| Nearside Handlebar grip insecure to handlebar N/S (left) handlebar grip loose & can be removed - PRS - clean & re-glue in position (2.2.1 (d) (ii)) | 1 |
| Central Rear Lower Wheel bearing has excessive play Rear wheel bearing has play side to side (5.1.3 (a) (i)) | 1 |
| Central Rear Outer Stop lamp switch with a delay in operation Rear brake light illuminates after braking force is applied at the rear brake pedal (4.3.2 (a) (ii)) | 1 |
| Front Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls ADJUSTED R/B SWITCH (4.3.2 (a) (iii)) | 1 |
| Rear Position lamp not working PRS Replaced bulb (4.2.1 (a)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Brake grabbing severely fr brake master cyl plunger dry (1.2.1 (c)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front Shock absorber has negligible damping effect fork seal leaking (5.3.2 (b)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Stop lamp not working control 1 (4.3.1 (a) (ii)) | 1 |