| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 21 |
| Registration plate issues | 14 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| 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| | 4 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Offside Front Headlamp insecure |1.2.3b| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Rear Brake pedal insecure |3.1.2a| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Headlamp damaged and function impaired |1.2.3a| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear All position lamps not working |4.2.1 |a|| | 1 |
| Offside Front Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Front Front position lamp insecure |1.1.1c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Valve stem seriously damaged front (5.2.3 (j)) | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Nearside Drive chain excessively tight |6.2.1d| | 1 |
| Rear Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Offside Front Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 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 |
| Nearside Front Brake hose fouling |3.2.B3b| | 1 |
| Offside Front Brake hose excessively twisted |3.2.B3a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator light intensity significantly reduced |4.4.3 |a|| | 1 |
| Front Stop lamp not working SWITCH NOT CONNECTED |4.3.1 |a| |ii|| | 1 |
| Front Steering linkage locking device missing NO SPLIT PIN FITTED |2.1.3 |d|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Offside Front Brake disc insecure MOUNTING BOLTS LOOSE |1.1.14 |a| |ii|| | 1 |
| Front Suspension attachment bracket/mounting insecure FRONT FORK PINCH BOLT UNDONE |5.3.3 |a| |i|| | 1 |
| Front Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Brake pipe excessively corroded | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Brake master cylinder severely damaged |3.2.B1b| | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Front Headlamp insecure |1.2.3b| | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle sticking when shutting down (6.2.7 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Front Brake caliper leaking (1.1.16 (b) (i)) | 1 |