| Most common failures | No# failures |
|---|
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 21 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 14 |
| Headlamp aim out of alignment | 13 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 9 |
| Drive chain worn to excess |6.2.1e| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 8 |
| Registration plate issues | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 6 |
| Offside Front Direction indicator not working |1.5.1c| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 6 |
| Drive chain excessively tight |6.2.1d| | 6 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear mono-shock pivot seized |2.4.B.4| | 5 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Horn not working |1.7.3a| | 4 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 4 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 3 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 3 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 3 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Rear Footrest insecure |6.2.1a| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Chain guard insecure |6.2.1c| | 2 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Rear mono-shock pivot seized |2.4.B.4| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Front Decelerometer brake test indicates a binding brake |3.3.E1d| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Drive chain worn to excess |6.2.1e| | 2 |
| Offside Rear Direction indicator insecure |1.5.3b| | 2 |
| Offside Rear Footrest insecure |6.2.1a| | 2 |
| Offside Handlebar deformed |2.1.1b| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Rear suspension component seized |2.4A2a|ii|| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Front Handlebar deformed to the extent that steering is affected |2.2.1 |c| |ii|| | 1 |
| Rear Lower Suspension arm pin or bush excessively worn Link arm |5.3.4 |a| |i|| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear mono-shock insecure |2.4.B.4| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake linkage clevis joint excessively worn |3.2.A1d| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Centre Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Brake back plate|s| insecure |3.2.A1j| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Inner Rear Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear mono-shock pivot excessively worn lower bush |2.4.B.4| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded brake lever pivot in rear brake drum |3.2.A1h| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies brake pedal |1.3.1a| | 1 |
| Front Stop lamp remains on when the brake is released brake lever |1.3.1e| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Central Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Brake reaction bracket insecure |3.2.A1j| | 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 |
| Offside Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Brake back plate|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Upper Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Horn control not functioning. stops working when dipped beam turned on |1.7.2b| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front wheel insecure |4.2.3b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Centre Front Upper Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Centre Front Lower Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Steering headbearing has excessive wear or free play Notched |2.2.2 |f| |i|| | 1 |
| Registration plate lamp issues | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected sticking and revving up on left lock |6.2.7 |a| |ii|| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Outer Rear Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Lower Rear suspension component loose |2.4.A.1a| | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Offside Brake pedal insecure clamp bolt missing |1.1.2 |e| |i|| | 1 |
| Offside Rear Brake clevis joint has restricted free movement needs lubricating |1.1.15 |e|| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Offside Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside An item not tested |Manual| | 1 |
| Front Upper Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Lower Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Centre Rear Lower Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| An item not tested |Manual| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front position lamp does not illuminate immediately when switched on Front side light |1.1.3a| | 1 |
| Rear Handlebar handgrip not secure to handlebars. Grip split |2.1.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on L/H/R |1.1.3a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Centre Horn not working |1.7.3a| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Centre Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Brake component is fractured |3.1.5| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Offside Throttle operating incorrectly |6.2.1f| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Nearside Steering lock stop maladjusted |2.1.3| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Offside Rear Brake drum|s| cracked |3.2.A1g| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Valve stem seriously damaged valve stem perished (5.2.3 (j)) | 1 |
| Rear Suspension arm pin or bush excessively worn doesnt return fully (5.3.4 (a) (i)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Central Exhaust system insecure (6.1.2 (a)) | 1 |
| Nearside Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Rear Wheel fixing missing (single fixing) Split pin Missing (5.2.1 (a) (ii)) | 1 |
| Front Brake lever pivot has excessive free play (1.1.1 (b)) | 1 |
| Nearside Front Brake component insecure Brake hose (1.1.21 (c)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Exhaust is leaking and excessively noisey (7.1.1b) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.5.1) | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort (3.3.A1d) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort (3.3.A1d) | 1 |
| Rear Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |