| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 33 |
| Registration plate issues | 21 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 14 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 7 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Rear Brake disc|s| cracked |3.2.A1g| | 5 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Horn not working |1.7.3a| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Nearside 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 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Rear Brake pedal insecure |3.1.2a| | 2 |
| Nearside Front Direction indicator obscured |1.5.1a| | 2 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Front Brake lever attachment screws missing |3.1.2b| | 1 |
| Offside Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front shock absorber seal failed and leaking oil Both Front Shock Absorbers |2.3.3| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Horn missing |1.7.1| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level |1.1.10 |d| |ii|| | 1 |
| Offside Direction indicator missing |1.5.1a| | 1 |
| Nearside Direction indicator missing |1.5.1a| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Drive chain worn to excess TIGHT SPOT |6.2.1e| | 1 |
| Nearside Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Lower Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear 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 |
| Rear Brake pedal mounting insecure |3.1.2a| | 1 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Outer Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Motorcycle structure excessively damaged broken screen sharp edges |6.1.1a| | 1 |
| Offside Throttle operating incorrectly |6.2.1f| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Rear Exhaust has part of the system missing |7.1.1a| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Offside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Handlebar restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Brake pedal mounting insecure |3.1.2a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Fuel system component leaking Fuel tap |6.1.3 |b| |i|| | 1 |
| Brake hose damaged | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Riders seat insecure both bolts missing |6.2.1a| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (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 Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Outer Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure Fairing severely damaged - insecure and sharp edges, electrical equipment and wiring insecure at rear (6.1.1 (b) (i)) | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Indicator tell tale not functioning |1.5.2| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 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 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Registration plate lamp issues | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Rear Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Rear Brake caliper inadequately mounted (1.1.16 (c) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Brake component inadequately mounted rear caliper not in locating lug. (1.1.21 (c)) | 1 |
| Nearside Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Outer Rear Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Outer Front Lower Steering damper in such a condition that the steering action is impaired. |2.1.2d| | 1 |
| Nearside Front Brake hose which buldges |3.2.B4| | 1 |