| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 21 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 11 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 10 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 9 |
| Front wheel bearings have excessive free play |2.3.5b| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Steering headbearing has excessive free play |2.2.2| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Horn not working |1.7.3a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Registration plate issues | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Fuel pipe leaking |7.2.1a| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Horn control defective |1.7.2a| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Nearside Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Headlamp incorrect colour |1.2.1| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Fuel tank leaking |7.2.1a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Offside Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Offside Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Motorcycle structure excessively corroded center stand is broken and hanging off |6.1.1a| | 1 |
| Front position lamp damaged and function impaired front position light not working |1.1.1b| | 1 |
| Rear position lamp damaged and function impaired not working ,and occastionaly flickers |1.1.1b| | 1 |
| Roller brake test indicates a binding brake front brakes |3.3.A1a| | 1 |
| Roller brake test indicates a binding brake rear brake |3.3.A1a| | 1 |
| Rear Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Shock absorber likely to become detached (5.3.2 (a) (ii)) | 1 |
| Front Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Fuel system component leaking |7.2.1a| | 1 |
| Rear Chain guard insecure |6.2.1c| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Wheel fixing missing (single fixing) split pin (5.2.1 (a) (ii)) | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Centre Front Lower Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Drive chain worn to excess tight links |6.2.1e| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Roller brake test indicates a binding brake front |3.3.A1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Offside Direction indicator incorrect colour |1.5.1b| | 1 |
| Front suspension assembly component missing |2.3.1| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Drive belt sprocket carrier worn to excess |6.2.1e| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake hose excessively kinked |3.2.B3a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Brake hose fouling |3.2.B3b| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Position lamp not working front sidelight (4.2.1 (a)) | 1 |
| Offside Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Brake disc|s| securing bolt|s| loose one rear |3.2.A1g| | 1 |
| Rear Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. swinging arm |2.4.A.2d| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars fouling nearside of fuel tank |2.1.2b| | 1 |
| Front shock absorber seal failed and leaking oil both front fork seals |2.3.3| | 1 |
| Rear Drive chain excessively loose drive chain |6.2.1d| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Centre Rear Steering linkage has excessive free play |2.2.2| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded Rear caliper binding. |3.2.A1h| | 1 |
| Offside Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear mono-shock insecure |2.4.B.4| | 1 |
| Front Roller brake test indicates a binding brake (3.3.A1a) | 1 |
| Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort (3.3.A1c) | 1 |
| Exhaust excessively deteriorated (7.1.1a) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. (3.3.A2b) | 1 |
| Front position lamp does not illuminate immediately when switched on (1.1.3a) | 1 |
| Offside Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Exhaust has a major leak of exhaust gases collectors |6.1.2 |a|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 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 |
| Rear Brake pedal mounting insecure inc exhaust hanging bracket |3.1.2a| | 1 |