| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 55 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 15 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 15 |
| Throttle operating incorrectly |6.2.1f| | 15 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 11 |
| Registration plate issues | 11 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 11 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 8 |
| Headlamp aim beam image kick up to the offside |1.6| | 8 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Front wheel bearings have excessive free play |2.3.5b| | 7 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 6 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 6 |
| Headlamp insecure |1.2.3b| | 5 |
| Offside Front Direction indicator not working |1.5.1c| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Handlebar deformed |2.1.1b| | 4 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Offside Front Footrest insecure |6.2.1a| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Throttle operating incorrectly |6.2.1f| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Direction indicator not working |1.5.1c| | 2 |
| Horn not working |1.7.3a| | 2 |
| Nearside Front Direction indicator insecure |1.5.3b| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 2 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Offside Footrest insecure |6.2.1a| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 2 |
| Brake hose damaged | 2 |
| Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Offside Front Brake lever excessively damaged |3.2.A1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Front Steering lock stop ineffective |2.1.3| | 1 |
| Front Front position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Stop lamp does not illuminate immediately a brake applies Suspect stop lamp permanently on |1.3.1a| | 1 |
| Brake excessively binding |1.2.1 |f|| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Upper An item not tested |Manual| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Front Brake fluid not visible |1.1.10 |d| |iii|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Brake lever is so short that the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Offside Front Steering lock stop maladjusted |2.1.3| | 1 |
| Position lamp showing white light to the rear |4.2.3 |a| |ii|| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Steering control handlebar movement restricted by trapped cables clutch cable |2.1.2c| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Headlamp switch faulty |1.2.4| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Centre Front Front position lamp insecure |1.1.1c| | 1 |
| Centre Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Offside Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Nearside Front Footrest missing |6.2.1a| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Stop lamp not working off front leaver |4.3.1 |a| |ii|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Brake lining|s| less than 1.0 mm thick |1.1.13 |a|| | 1 |
| Nearside Front Steering lock stop maladjusted |2.1.3| | 1 |
| Headlamp missing |1.2.3a| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| An item not tested |Manual| | 1 |
| Outer Front Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 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 Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Front Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Nearside Front Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Offside Front Throttle operating incorrectly throttle doesn`t self close as designed |6.2.1f| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. throttle grip rotates on throttle tube |2.1.1c| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Exhaust mounting missing |7.1.1c| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Central Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Nearside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Centre Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front suspension assembly component cracked |2.3.1| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Throttle operating incorrectly sticking half way on return (6.2.7 (a) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake caliper inadequately mounted and braking performance affected rubbing on brake disc (1.1.16 (c) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Roller brake test indicates a binding brake (3.3.A1a) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Rear Brake master cylinder insecure Feed hose clip corroded (1.1.10 (c)) | 1 |
| Nearside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Front Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear 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 |