| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 24 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Registration plate issues | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 7 |
| Horn not working |1.7.3a| | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 5 |
| Direction indicators not working |1.5.1c| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Riders seat insecure |6.2.1a| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Offside Fuel system component leaking |7.2.1a| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Headlamp switch faulty |1.2.4| | 3 |
| Front Direction indicators not working |1.5.1c| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Nearside Fuel system component leaking |7.2.1a| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Steering lock stop ineffective |2.1.3| | 2 |
| Sidecar wheel bearings have excessive free play |5.2.3c| | 2 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 2 |
| Centre Front Horn not working |1.7.3a| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Brake disc|s| cracked |3.2.A1g| | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Nearside Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Offside Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Rear Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 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 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Nearside Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Nearside Fuel system component insecure Fuel pipe lying on engine. |7.2.1b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Steering control handlebar movement restricted by cables caught on a projection Clutch cable routed wrong |2.1.2c| | 1 |
| Centre Rear Lower Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Nearside Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear Rear position lamp insecure |1.1.1c| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Steering lock stop missing |2.1.3| | 1 |
| Sidecar suspension has an insecure unit. |5.2.3a| | 1 |
| Fuel system component insecure feed pipe |7.2.1b| | 1 |
| Sidecar attachment has abnormal play |5.1.A.1| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Brake hose damaged | 1 |
| Nearside Front Brake hose which buldges |3.2.B4| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake pipe excessively chafed |3.2.B2a| | 1 |
| Offside Front Upper Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Nearside Rear Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Offside Rear Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt Droplink |2.4.G.2| | 1 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt Droplink |2.4.G.2| | 1 |
| Nearside Rear Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt Droplink |2.4.G.2| | 1 |
| Offside Rear Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt Droplink |2.4.G.2| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Sidecar attachment insecure |5.1.1b| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Fuel cap missing |6.1.3 |b| |i|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Throttle control functioning such that safe operation of the motorcycle is adversely affected when turning bars left |6.2.7 |a| |ii|| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Fuel hose leaking |7.2.1a| | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Fuel cap ineffective seal missing (6.1.3 (b) (i)) | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Dipswitch does not operate immediately when selected on main beam |4.1.3 |b|| | 1 |
| Offside Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Nearside Front Lower Front suspension assembly component loose |2.3.1| | 1 |
| Nearside Rear Lower Brake pipe excessively chafed |3.2.B2a| | 1 |
| Nearside Rear Lower Brake pipe excessively damaged |3.2.B2a| | 1 |
| Centre Front Indicator tell tale not functioning |1.5.2| | 1 |
| Nearside Front Brake disc fractured |1.1.14 |a| |ii|| | 1 |
| Nearside Fuel system component leaking |6.1.3 |b| |i|| | 1 |
| Rear Brake cylinder severely corroded |3.2.B1b| | 1 |
| Offside Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Rear Upper Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Brake hose excessively deteriorated | 1 |
| Nearside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Stop lamp not working rear switch /lever (4.3.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp flashing (4.2.3 (b)) | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Nearside Lower Fuel pipe union leaking secured both T piece sections with new securing clips |6.1.3 |b| |i|| | 1 |
| Offside Lower Fuel pipe union leaking secured both T piece sections with new securing clips |6.1.3 |b| |i|| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Nearside Front Sidecar direction indicator not working |1.5.1c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Windscreen wiper blade missing |8.2.2| | 1 |
| Offside Windscreen wiper blade missing |8.2.2| | 1 |
| Exhaust emissions carbon monoxide content excessive |7.3.B.1a| | 1 |
| Exhaust engine idle speed too high |7.3.A.2a| | 1 |
| Rear Exhaust system not adequately supported |7.1.1| | 1 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Brake pipe excessively corroded | 1 |
| Centre Rear Upper Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Upper Horn not working |1.7.3a| | 1 |
| Centre Rear Upper Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Parking brake lever has no reserve travel (3.1.6b) | 1 |
| Nearside Headlamp aim beam image kick up to the offside (1.8) | 1 |
| Offside Headlamp aim beam image kick up to the offside (1.8) | 1 |
| Parking brake: efficiency below requirements (3.7.B.7) | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Throttle operating incorrectly |6.2.1f| | 1 |
| Front Brake hose excessively damaged Top hose near master cylinder (1.1.12 (b) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Sidecar wheel alignment has excessive toe-in |5.3.1b| | 1 |
| Sidecar wheel alignment has excessive vertical misalignment which adversely affects the handling of the combination |5.3.2| | 1 |
| Nearside Sidecar direction indicator not working |1.5.1c| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |