| Most common failures | No# failures |
|---|
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 32 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 25 |
| Headlamp aim out of alignment | 22 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 16 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 16 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 13 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 10 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Registration plate issues | 8 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Front Brake excessively binding (1.2.1 (f)) | 6 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 5 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Registration plate lamp issues | 4 |
| Front suspension has inadequate damping effect. |2.3.6c| | 4 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear wheel insecure |4.2.3b| | 2 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Horn control defective |1.7.2a| | 2 |
| Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Motorcycle structure inadequately repaired such that structural rigidity is significantly reduced left hand rear side panel not secure (6.1.1 (d) (i)) | 1 |
| Motorcycle structure inadequately repaired such that structural rigidity is significantly reduced front mudguard (6.1.1 (d) (i)) | 1 |
| Brake disc contaminated rear disc covered in oil (1.1.14 (b)) | 1 |
| Shock absorber has negligible damping effect rear shock absorber (5.3.2 (b)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Headlamp aim headlamp deteriorated and function impaired headlamp switching wrong way round. |1.2.3a| | 1 |
| Offside Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Brake disc significantly and obviously worn warped (1.1.14 (a) (i)) | 1 |
| Rear Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on number plate |1.1.3a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Inner Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Brake caliper|s| insecure |3.2.A1j| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Centre Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Inner Front Lower Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Front shock absorber seal failed and leaking oil both |2.3.3| | 1 |
| Offside Front Shock absorber has a serious fluid leak Fork Oil Seal Leaking (5.3.2 (b)) | 1 |
| Nearside Front Forks excessively corroded Excessively Pitted (2.2.2 (d) (i)) | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Nearside Brake lever pivot excessively worn (1.1.1 (b)) | 1 |
| Rear Brake caliper operating mechanism has excessive travel (1.1.16 (e) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Shock absorber has a serious fluid leak both |5.3.2 |b|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake caliper leaking |1.1.16 |b| |i|| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Upper Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Upper Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear suspension bush has excessive free play engine swing bush has excessive freeplay |2.4.A2a|i|| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Rear wheel insecure |4.2.3b| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Brake component is severely distorted |3.1.5| | 1 |
| Front wheel bearings are excessively tight |2.3.5b| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear spring fractured |2.4.A1b|i|| | 1 |
| Brake performance not tested |3.3| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Fuel pipe leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front suspension assembly component loose fork clamp |2.3.1| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies When Front brake is applied does not operate brake light |1.3.1a| | 1 |
| Front shock absorber seal failed and leaking oil Both Front Suspension Legs Leaking Oil |2.3.3| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil L/H fork seal failed and leaking onto front brake caliper area |2.3.3| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Stop lamp not working from front brake control (4.3.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Rear Stop lamp not working stop light (4.3.1 (a) (ii)) | 1 |
| Offside Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Front Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Steering control handlebar movement restricted by taut cables steering pulling throttle cable on right turn |2.1.2c| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Nearside Front Brake disc significantly and obviously worn Below minimum thickness (1.1.14 (a) (i)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |