| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 18 |
| Drive chain excessively loose |6.2.1d| | 14 |
| Headlamp aim out of alignment | 12 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Front Brake excessively binding (1.2.1 (f)) | 6 |
| Drive chain worn to excess |6.2.1e| | 6 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 5 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 4 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 3 |
| Rear Drive chain excessively loose |6.2.1d| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Registration plate issues | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 2 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Offside Rear Footrest missing (6.2.12 (a)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake caliper inadequately mounted and braking performance affected rear brake carrier not secured properly. (1.1.16 (c) (ii)) | 1 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Nearside Front Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Central Front Horn not working (7.7 (a) (ii)) | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Offside Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Brake pedal has insufficient reserve travel hitting exhaust (1.1.2 (a)) | 1 |
| Stop lamp not working foot control switch not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake grabbing severely Brake Lever Pivot bolt required lubricating. (1.2.1 (c)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain worn to excess siezed links |6.2.1e| | 1 |
| Handlebar handgrip not secure to handlebars. l/h and r/h grips not secure on bars. |2.1.1c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Direction indicator not working all (4.4.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Brake fluid reservoir fluid level dangerously low below minimum |3.2.B1d| | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Drive chain horseshoe locking device likely to become detached bent clip replaced (6.1.7 (j) (ii)) | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system clamp loose hiting swingarm |7.1.1.c| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak FRONT NEARSIDE FOLK SEAL LEAKING (5.3.2 (b)) | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Nearside Front Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Front Position lamp not working both (4.2.1 (a)) | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Offside Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Nearside Handlebar deformed to the extent that steering is affected |2.2.1 |c| |ii|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system Exhaust is hitting rear swinging arm |7.1.1.c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 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 |
| Front Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Drive chain excessively tight seized |6.2.1d| | 1 |
| Nearside Front Direction indicators not working missing |1.5.1c| | 1 |
| Front Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Nearside Rear Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Nearside Front Drive chain sprocket so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Nearside Rear Drive chain sprocket so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Steering operation restricted in free movement from lock to lock mirror fouls on fairing (2.1.4 (c)) | 1 |
| Rear Stop lamp not working off rear foot brake |4.3.1 |a| |ii|| | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls does not work when front brake applied (4.3.2 (a) (iii)) | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Central Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Rear Lower Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Footrest missing both rear (6.2.12 (a)) | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Brake cylinder operating mechanism has excessive travel clevis pin missing !!!! (1.1.16 (e) (i)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Stop lamp does not illuminate immediately a brake applies Innop when hand lever applied |1.3.1a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake cylinder inadequately mounted and braking performance affected Cylinder out of line with operating rod |1.1.16 |c| |ii|| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Stop lamp not working Rear control |4.3.1 |a| |ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front position lamp incorrect colour blue |1.1.2a| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Brake hose excessively twisted routed wrong side of fork (1.1.12 (b) (ii)) | 1 |
| Offside Front Brake caliper operating mechanism has excessive travel brake lever touches handlebar (1.1.16 (e) (i)) | 1 |
| Offside Front Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Nearside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |