| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Registration plate issues | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Sidecar wheel bearings have excessive free play |5.2.3c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Exhaust mounting does not fully support the exhaust system loose bolts |7.1.1.c| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Rear Upper Rear suspension bush has excessive free play nut and bolt loose |2.4.A2a|i|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| 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| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Fuel cap leaking |6.1.3 |b| |i|| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Nearside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear reflector reflecting white to the rear hole in lamp |4.8.2 |a| |ii|| | 1 |
| Front Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Throttle operating incorrectly sticking |6.2.1f| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Horn not working |1.7.3a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Throttle operating incorrectly |6.2.1f| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Throttle operating incorrectly THROTTLE STICKING OPEN |6.2.1f| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition baffle missing |8.1.1 |a|| | 1 |
| Riders seat insecure front seat |6.2.1a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Stop lamp does not emit a steady light real light comes on and off |1.3.1b| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking speedo cable not fixed to drive |6.1.1c| | 1 |
| Rear Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Steering linkage locking device ineffective |2.1.3 |d|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Drive belt worn to excess |6.2.1e| | 1 |
| Front Drive belt sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive belt sprocket worn to excess |6.2.1e| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear Rear suspension bush has excessive free play swing arm bushes have excessive side to side movement (2.4.A2a(i)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake back plate insecure (1.1.14 (d)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Offside Front Lower Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected PINCH BOLT LOOSE ON BOTTOM OF OFF SIDE FORK LEG (5.2.1 (c) (ii)) | 1 |
| Rear Lower Stop lamp likely to become detached rear lamp housing loose off rear mudguard number plate indicators all on same housing bracket (4.3.1 (c) (ii)) | 1 |
| Front Headlamp not working on dipped beam incorrect operation on switch. dip comes on when switch is operated to main ? (4.1.1 (a) (ii)) | 1 |
| Nearside Upper Fuel tank leaking (6.1.3 (b) (i)) | 1 |
| Nearside Suspension arm pin or bush excessively worn Side car suspension arm bearing/bush. (5.3.4 (a) (i)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Stop lamp adversely affected by the operation of another lamp FRONT INDICATOR (4.3.3 (b)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Riders seat insecure bolt insecure on seat mounting (6.2.5 (a) (ii)) | 1 |
| Front Exhaust has a major leak of exhaust gases Lambda sensor insecure blowing by heavily (6.1.2 (a)) | 1 |
| Rear Stop lamp not working switch (4.3.1 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 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 |
| Horn not working (7.7 (a)) | 1 |