| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 53 |
| Rear reflector on motorcycle missing |1.4.1| | 25 |
| Registration plate issues | 25 |
| Headlamp aim beam image kick up to the offside |1.6| | 17 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 12 |
| Horn not working |1.7.3a| | 10 |
| Drive chain excessively loose |6.2.1d| | 9 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 9 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 5 |
| Horn not working (7.7 (a) (ii)) | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| 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| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Brake hose excessively deteriorated | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Horn not working |1.7.3a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 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 dipped beam |1.2.2a|i|| | 2 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 2 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Front Front position lamp missing |1.1.1a| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Horn not working (7.7 (a)) | 2 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Drive chain worn to excess |6.2.1e| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Front Brake hose leaking fluid master cylinder |3.2.B4| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Brake component is severely distorted |3.1.5| | 1 |
| Offside Rear Wheel excessively distorted Rim buckled (5.2.2 (c) (i)) | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear suspension component misaligned |2.4.A.1a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Centre Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Drive chain sprocket so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Valve stem seriously damaged front and rear (5.2.3 (j)) | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Offside Front Brake disc contaminated Suspension oil leaking on to disc |1.1.14 |b|| | 1 |
| Front Wheel bearing rough when rotated Also has free play |5.1.3 |b| |i|| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Chain guard fouling another component |6.2.1c| | 1 |
| Offside Rear Exhaust markings indicating not for road use or similar wording (7.1.4) | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 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 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Suspension rod attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Nearside Front Brake disc contaminated coated in fork oil (1.1.14 (b)) | 1 |
| Offside Front Brake disc contaminated coated in fork oil (1.1.14 (b)) | 1 |
| Front position lamp missing |1.1.1a| | 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 |
| Riders seat insecure |6.2.1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Stop lamp not working FRONT BRAKE APPLICATION. (4.3.1 (a) (ii)) | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Upper Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Motorcycle structure cracked |6.1.1a| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front Brake performance not tested |3.3| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Centre Upper Direction indicators not working |1.5.1c| | 1 |
| Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Brake reaction bracket insecure |3.2.A1j| | 1 |
| Nearside Front Horn not working |1.7.3a| | 1 |
| Registration plate lamp issues | 1 |
| Offside Front Upper Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected not returning correctly |6.2.7 |a| |ii|| | 1 |
| Horn sound not in accordance with requirements too quiet (7.7 (c)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock touching radiator (2.1.4 (b)) | 1 |
| Brake disc significantly and obviously worn excessive play on rivets (1.1.14 (a) (i)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect kick up to the right (4.1.2 (c)) | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Drive chain horseshoe locking device likely to become detached |6.1.7 |j| |ii|| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Exhaust system insecure rear silencer |6.1.2 |a|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Front Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Front Exhaust system insecure |6.1.2 |a|| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced grab rail insecure due to bolt missing (6.1.1 (b) (ii)) | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Offside Rear Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Front wheel spindle securing nut locking device insecure spacer fitted wrong way |2.3.3a| | 1 |
| Inner Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |