| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 32 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 18 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 17 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 16 |
| Headlamp deteriorated and function impaired |1.2.3a| | 16 |
| Registration plate issues | 15 |
| Front suspension has inadequate damping effect. |2.3.6c| | 13 |
| Front wheel bearings have excessive free play |2.3.5b| | 13 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 12 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 11 |
| Headlamp aim not tested |1.6| | 11 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 10 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 10 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Headlamp switch faulty |1.2.4| | 8 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 7 |
| Front wheel bearings are excessively rough |2.3.5b| | 7 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 6 |
| Stop lamp remains on when the brake is released |1.3.1e| | 6 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 6 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 6 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 6 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 4 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 4 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 3 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 3 |
| Offside Rear Direction indicator insecure |1.5.3b| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 2 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Nearside Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 2 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Nearside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Offside Front suspension has an inadequate repair of a load bearing member or its supporting structure. |2.3.8| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Engine mounting/bracket excessively loose |6.1.8 |a| |ii|| | 1 |
| Headlamp reflector seriously defective |4.1.1 |b| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Position lamp showing white light to the rear |4.2.3 |a| |ii|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Headlamp deteriorated and function impaired No beam pattern with dip beam illuminated. Headlight reflector burnt. |1.2.3a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake hose connection leaking |1.1.12 |c|| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Rear suspension has a fracture of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Upper Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Roller brake test No brake control achieves an efficiency of 30% |1.2.2 |a| |i|| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Motorcycle structure cracked |6.1.1a| | 1 |
| Rear suspension component cracked |2.4.A.1a| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Steering linkage has excessive free play |2.2.2| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Nearside Front Front position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Rear Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Front Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Handlebar handgrip not secure to handlebars. left and right deteiorated |2.1.1c| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking engine mounting spacers missing on n/s part missing on o/s |6.1.1c| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Offside Front Engine mounting/bracket damaged or deteriorated resulting in excessive movement |6.1.8 |a| |i|| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Front Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Brake component is fractured |3.1.5| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Nearside Lower Rear suspension bush has excessive free play engine mount/suspension |2.4.A2a|i|| | 1 |
| Offside Lower Rear suspension bush has excessive free play engine mount/suspension |2.4.A2a|i|| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Suspension component ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp reflector seriously defective (4.1.1 (b) (ii)) | 1 |
| Front Lower Engine mounting/bracket excessively loose (6.1.8 (a) (ii)) | 1 |
| Handlebar mounting so insecure that steering is adversely affected (2.2.1 (a) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Offside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Stop lamp not working Faulty switch and bulb (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working Bulb (4.3.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Front wheel bearings have excessive free play (2.3.5b) | 1 |
| Front wheel bearings are excessively rough (2.3.5b) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls brake light not illuminating when front brake applied (4.3.2 (a) (iii)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |