| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 39 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 25 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 17 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 12 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 11 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 8 |
| Steering headbearing has excessive free play |2.2.2| | 8 |
| Front wheel bearings have excessive free play |2.3.5b| | 8 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 6 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Throttle operating incorrectly |6.2.1f| | 6 |
| Registration plate lamp issues | 6 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 5 |
| Registration plate issues | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 5 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Headlamp insecure |1.2.3b| | 4 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 4 |
| Horn not working |1.7.3a| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Exhaust excessively deteriorated |7.1.1a| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 3 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 2 |
| Offside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 2 |
| Upper Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts out of retaining clip on bottom yoke |3.2.B2c| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Vehicle identification number not legible |6.3.5a| | 1 |
| Brake performance not tested |1.2.1 |g|| | 1 |
| Rear Brake hose leaking leaking at caliper |1.1.12 |c|| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Upper Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Nearside Front suspension assembly component missing |2.3.1| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Rear Engine mounting/bracket damaged or deteriorated resulting in excessive movement |6.1.8 |a| |i|| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake component has an inadequate repair Pad retainer plates missing. |3.1.5| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Brake lever has restricted free movement |1.1.15 |e|| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded pivot |3.2.A1h| | 1 |
| Nearside Front Upper Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front Upper Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Shock absorber has a serious fluid leak both front |5.3.2 |b|| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Front Brake fluid not visible |1.1.10 |d| |iii|| | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected |1.1.2 |b| |ii|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear spring incomplete |2.4.A1b|i|| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake disc significantly and obviously worn worn and has run out |1.1.14 |a| |i|| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Steering operation restricted in free movement from lock to lock Stiff steering |2.1.4 |c|| | 1 |
| Front Plate brake test indicates a severely juddering brake |3.3.B1b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake component is excessively corroded |3.1.5| | 1 |
| Offside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Suspension rod modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak fork seals (5.3.2 (b)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle sticks (6.2.7 (a) (ii)) | 1 |
| Offside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Steering headbearing excessively stiff or notchy Headbearings notchy at centre point. (2.2.2 (f) (i)) | 1 |
| Throttle operating incorrectly Throttle sticking open (6.2.7 (a) (i)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Wheel hub worn to the extent that wheel security is adversely affected (5.2.1 (b) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Shock absorber has a serious fluid leak RIGHT HAND FORK LEG (5.3.2 (b)) | 1 |
| Front Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Riders seat with a defective supporting structure (6.2.5 (a) (i)) | 1 |