| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 48 |
| Drive chain excessively loose |6.2.1d| | 46 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 22 |
| Drive chain worn to excess |6.2.1e| | 17 |
| Registration plate issues | 15 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 15 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 12 |
| Stop lamp remains on when the brake is released |1.3.1e| | 12 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Stop lamp remains on when the brakes are released | 11 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 9 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Horn not working |1.7.3a| | 7 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 7 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Handlebar deformed |2.1.1b| | 6 |
| Drive chain excessively tight |6.2.1d| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 5 |
| Drive chain sprocket worn to excess |6.2.1e| | 5 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Rear Brake locking device missing |3.2.A1e| | 3 |
| 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)) | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Front Brake excessively binding |1.2.1 |f|| | 3 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 3 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 3 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 2 |
| Nearside Drive chain excessively loose |6.2.1d| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| 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| | 2 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Brake pedal cannot be released smoothly |3.1.3d| | 2 |
| Front Handlebar deformed |2.1.1b| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Offside Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 2 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 2 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 2 |
| 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| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear Brake pedal insecure locking device missing (1.1.2 (e) (i)) | 1 |
| Throttle operating incorrectly throttle sticks on full right lock |6.2.1f| | 1 |
| Stop lamp not working Rear brake pedal |4.3.1 |a| |ii|| | 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 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Rear Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Direction indicator missing lens (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Upper Direction indicators not working |1.5.1c| | 1 |
| Centre Rear Upper Seat insecure |6.2.1a| | 1 |
| Offside Front Upper Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Drive chain worn to excess |6.2.1e| | 1 |
| Rear Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Nearside Front Direction indicator lens defective such that the emitted light is adversely affected |4.4.1 |b| |ii|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Brake performance not tested |3.3| | 1 |
| Offside Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake pedal has insufficient reserve travel shoes worn |1.1.2 |a|| | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Stop lamp not working brake switch |4.3.1 |a| |ii|| | 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, so that it is likely to fail |6.1.7 |k| |ii|| | 1 |
| Offside Rear Lower Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Built up wheel has a loose bolt/s |4.2.1c| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake back plate|s| insecure shim falling out |3.2.A1j| | 1 |
| Handlebar so insecure it is likely to become detached Bars lose to yokes (2.2.1 (b) (ii)) | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Offside Front Footrest missing Customer presented vehicle with foot rest in hand FITTED during test (6.2.12 (a)) | 1 |
| Offside Steering lock stop missing |2.1.3| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Outer Front Lower Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Centre Front Lower Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Front Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Drive chain sprocket so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Drive chain sprocket carrier worn to excess cush drive rubbers |6.2.1e| | 1 |
| Offside Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Offside Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear Motorcycle structure adversely modified Light unit insecure, inc wiring likely to
impede rear wheel |6.1.1b| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension wire wrapped around moving part |2.4.A.3a| | 1 |
| Throttle operating incorrectly cable is not attached correctly. |6.2.1f| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Drive chain sprocket carrier worn to excess cush drive rubbers worn to excess |6.2.1e| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Front Throttle operating incorrectly |6.2.1f| | 1 |
| Central Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Central Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected wheel raised & weight on wheel |2.2.2 |f| |ii|| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock right hand lock stop broken tank acting as lock stop |2.1.4 |b|| | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Drive chain sprocket worn to excess front and rear |6.2.1e| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Suspension component pin or bush excessively worn cush bushes (5.3.4 (a) (i)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp missing Main unit spun through 90 degrees |1.2.3a| | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected |1.1.2 |b| |ii|| | 1 |
| Rear Brake lever not releasing correctly and functionality of brakes affected |1.1.2 |b| |ii|| | 1 |
| Front Brake hose which buldges |3.2.B4| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride rear brake arm split pin missing |6.2.1h| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Brake pedal attachment screws loose |3.1.2b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired dip beam has no pattern and is very dull
|main beam tell tale glowing| |1.2.3a| | 1 |
| Exhaust has a major leak of exhaust gases downpipe-silencer joint not sealed (6.1.2 (a)) | 1 |
| Headlamp aim not tested no detectable pattern (4.1.2 (b)) | 1 |
| Headlamp aim projected beam image obviously incorrect hi/low reversed and no checkable pattern (4.1.2 (c)) | 1 |
| Drive chain horseshoe locking device likely to become detached ********** missing ********** (6.1.7 (j) (ii)) | 1 |
| Upper Throttle operating incorrectly cable fixing screw missing (6.2.7 (a) (i)) | 1 |
| Rear Brake cable excessively corroded not releasing correctly (1.1.15 (b)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Brake cable has restricted free movement |1.1.15 |e|| | 1 |
| Brake pivot has restricted free movement |1.1.15 |e|| | 1 |
| Front Wheel fixing missing |single fixing| |5.2.1 |a| |ii|| | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Front Brake component insecure bracket
for brake cable (1.1.21 (c)) | 1 |
| Front Wheel fixing loose (single fixing) folck pinch bolt (5.2.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Roller brake test brake efficiency less than 27.5% overall |1.2.2 |a| |ii|| | 1 |
| Drive chain sprocket carrier worn to excess cushdrive rubbers |6.2.1e| | 1 |
| Front Brake cylinder severely corroded |3.2.B1b| | 1 |
| Front Upper Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Central Rear Pillion seat insecure |6.2.6 |a| |ii|| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Rear switch not working. (4.3.2 (a) (iii)) | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Front Brake lever attachment screws missing |3.1.2b| | 1 |
| Front Front mudguard insecure Sharp edges |2.3.7| | 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 flashing more than 120 times per minute |1.5.1c| | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Front Stop lamp not working Stop lamp inoperative with front brake applied (4.3.1 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Brake excessively binding (1.2.1 (f)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil Both |2.3.3| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Handlebar handgrip missing |2.1.1c| | 1 |
| Offside Handlebar handgrip missing |2.1.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Rear Brake cable damaged |1.1.15 |a|| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Stop lamp likely to become detached |4.3.1 |c| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Rear Motorcycle structure is fractured and structural rigidity is significantly reduced swing arm |6.1.1 |a| |i|| | 1 |
| Rear Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced swing arm |6.1.1 |c| |i|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure mudguard |6.1.1 |b| |i|| | 1 |
| Nearside Motorcycle structure joining/attachment plate or fastening insecure side panel |6.1.1 |b| |i|| | 1 |
| Offside Rear Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Stop lamp remains on when the brake is released REAR BRAKE CABLE NEEDS TO BE CHANGED |1.3.1e| | 1 |
| Offside Front Upper Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Central Front Lower Wheel spoke missing |5.2.2 |d|| | 1 |
| Front Wheel spoke missing |4.2.1b| | 1 |
| Nearside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |