| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 18 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 17 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Registration plate issues | 11 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 10 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Registration plate lamp issues | 7 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Front mudguard insecure |2.3.7| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Brake excessively binding |1.2.1 |f|| | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 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 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Fuel tank insecure |6.1.3 |a| |i|| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Fuel system component insecure tank |7.2.1b| | 1 |
| Nearside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Rear Rear suspension bush has excessive free play suspension linkage |2.4.A2a|i|| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front shock absorber seal failed and leaking oil n/s |2.3.3| | 1 |
| Front shock absorber seal failed and leaking oil o/s |2.3.3| | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Fuel pipe leaking Clamp missing |6.1.3 |b| |i|| | 1 |
| Rear Lower Brake pedal attachment screws missing. |3.1.2b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Front Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Centre Rear Lower Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Brake component is fractured |3.1.5| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Front Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Offside Front Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Nearside Front Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Centre Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Nearside Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Horn not working |1.7.3a| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock steering fouling on horn. horn now removed |2.1.4 |b|| | 1 |
| Nearside Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Central Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak fork seal has blown and leaking down fork leg to brake caliper (5.3.2 (b)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Lower Suspension rod pin or bush excessively worn dog bone shocker (5.3.4 (a) (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced side stand loose (6.1.1 (b) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Valve stem seriously damaged perished (5.2.3 (j)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Front Shock absorber has a serious fluid leak Both (5.3.2 (b)) | 1 |
| Offside Rear Lower Brake excessively binding (1.2.1 (f)) | 1 |