| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 36 |
| Headlamp aim out of alignment | 31 |
| Registration plate issues | 19 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 16 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 14 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 13 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Drive chain excessively loose |6.2.1d| | 10 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 10 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 9 |
| Horn not working |1.7.3a| | 9 |
| Throttle operating incorrectly |6.2.1f| | 9 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Drive chain excessively tight |6.2.1d| | 7 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front wheel bearings are excessively rough |2.3.5b| | 6 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 6 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Drive chain worn to excess |6.2.1e| | 5 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 5 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Nearside Front Direction indicator not working |1.5.1c| | 4 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 4 |
| Direction indicators not working |1.5.1c| | 4 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 4 |
| Brake hose excessively deteriorated | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Offside Front 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 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 3 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Horn missing |1.7.1| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Offside Steering lock stop ineffective |2.1.3| | 2 |
| Rear Rear mono-shock pivot excessively worn |2.4.B.4| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Rear mono-shock pivot seized |2.4.B.4| | 2 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Front Direction indicator insecure |1.5.3b| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Fuel pipe leaking |7.2.1a| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Braking system does not have an approriate system/s fitted according to its age |3.1.1| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front An item not tested |Manual| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Brake pipe union leaking fluid |3.2.B4| | 1 |
| Front Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear Brake pipe excessively chafed |3.2.B2a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Front position lamp insecure |1.1.1c| | 1 |
| Rear Brake back plate|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Front Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Direction indicator insecure |1.5.3b| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Rear Brake component is fractured |3.1.5| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Nearside Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Nearside Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Upper Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Offside Front Handlebar deformed |2.1.1b| | 1 |
| Offside Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Centre Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Nearside Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Offside Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Lower Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Steering lock stop maladjusted |2.1.3| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Headlamp missing |1.2.3a| | 1 |
| Offside Front Brake fluid reservoir fluid level dangerously low front brake |3.2.B1d| | 1 |
| Direction indicator not working all |1.5.1c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Brake hose damaged | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Offside Front Lower Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Lower Brake master cylinder severely damaged |3.2.B1b| | 1 |
| An item not tested |Manual| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Nearside Front Handlebar fractured |2.1.1b| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Nearside Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear reflector on motorcycle insecure |1.4.2c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Brake disc|s| friction surface contaminated by oil or grease both |3.2.A1k| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Nearside Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Offside Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Handlebar cracked |2.1.1b| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Offside Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Offside Brake component is severely distorted |3.1.5| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Front suspension assembly component missing |2.3.1| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Rear Brake caliper operating mechanism has excessive travel Rear brake not working |1.1.16 |e| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Front position lamp does not illuminate immediately when switched on side light |1.1.3a| | 1 |
| Stop lamp not working Front switch |4.3.1 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake reaction bracket excessively corroded Cracked (1.1.15 (b)) | 1 |
| Front Brake excessively binding Unable To Turn Wheel By Hand ! (1.2.1 (f)) | 1 |
| Nearside Handlebar fouling on the fuel tank or bodywork on full lock Trap Finger Both Sides
Steering Stop Worn (2.1.4 (b)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock Brake Union Bottom Yoke Fouling Speedo Cable (2.1.4 (b)) | 1 |
| Rear Suspension component modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Nearside Handlebar fouling on the fuel tank or bodywork on full lock steering stop worn (2.1.4 (b)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake hose leaking (1.1.12 (c)) | 1 |
| Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Stop lamp not working when front brake is applied (4.3.1 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Fuel cap leaking (6.1.3 (b) (i)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |