| Most common failures | No# failures |
|---|
| Front Roller brake test indicates a binding brake |3.3.A1a| | 17 |
| Headlamp aim out of alignment | 16 |
| Front Brake excessively binding (1.2.1 (f)) | 11 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 9 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 9 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 9 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 8 |
| Front Brake excessively binding |1.2.1 |f|| | 8 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 8 |
| Horn not working |1.7.3a| | 7 |
| Horn not working (7.7 (a) (ii)) | 7 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 7 |
| Registration plate issues | 6 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Stop lamp remains on when the brakes are released | 6 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Offside Front 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 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 3 |
| Horn not working (7.7 (a)) | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Nearside Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Horn not working (7.7 (a) (ii)) | 2 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Front Brake disc fractured (1.1.14 (a) (ii)) | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 2 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Horn sound not in accordance with requirements (7.7 (c)) | 2 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Rear Brake lever has insufficient reserve travel rear brake lever has to much travel (1.1.2 (a)) | 1 |
| Rear Wheel fixing missing (single fixing) (5.2.1 (a) (ii)) | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Front Brake excessively binding front brake binding excessivly (1.2.1 (f)) | 1 |
| Rear Brake excessively binding rear brake not releasing (1.2.1 (f)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Nearside Front Stop lamp remains on when the brake is released rear brake lever does not return fully to contact brake light switch to extinguish the stop light. |1.3.1e| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Central Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Direction indicator lens defective such that the emitted light is adversely affected both damaged (4.4.1 (b) (ii)) | 1 |
| Rear Brake drum significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Rear Brake lever has inadequate reserve travel lever pulls back to handlebars |3.1.3b| | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Offside Front Lower Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Front Brake component modification adversely affecting braking performance (1.1.21 (d) (ii)) | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Offside Front Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Dipswitch does not operate immediately when selected on main beam switch does not move to select main beam (4.1.3 (b)) | 1 |
| Front Brake component insecure (1.1.21 (c)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Valve stem seriously damaged Cracking (5.2.3 (j)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Brake lever has inadequate reserve travel rear brake lever |3.1.3b| | 1 |
| Stop lamp remains on when the brake is released rear system |1.3.1e| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 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 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Shock absorber has a serious fluid leak offside and nearside both leaking fluid (5.3.2 (b)) | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Nearside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Front mudguard insecure Front mudguard is excessively damaged, and has sharp edges that would be dangerous |2.3.7| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Front Forks excessively deformed or-more likely bottom yoke bent (2.2.2 (d) (i)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear Brake linkage excessively corroded brake arm pivot seized in hub (1.1.15 (b)) | 1 |
| Front Motorcycle structure excessively damaged fender |6.1.1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure |6.1.1 |b| |i|| | 1 |
| Suspension attachment bracket/mounting insecure |5.3.3 |a| |i|| | 1 |
| Rear Stop lamp likely to become detached |4.3.1 |c| |ii|| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear Motorcycle structure joining/attachment plate or fastening insecure wheel carrying arm 2 bolts missing (6.1.1 (b) (i)) | 1 |
| Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Rear Brake drum insecure (1.1.14 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Binding (6.2.7 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Offside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear wheel bearings have excessive free play movement in the hub |2.4.A.2c| | 1 |
| Rear 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 Brake lagging in operation (1.2.1 (d)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Horn control defective |1.7.2a| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition STD PIPLE AND SILENCER FITTED AFTER SERVICE AT TIME (8.1.1 (a)) | 1 |
| Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Decelerometer brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Brake disc contaminated Oil (1.1.14 (b)) | 1 |
| Offside Brake lever is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Steering headbearing excessively stiff or notchy NOTCHY (2.2.2 (f) (i)) | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front shock absorber seal failed and leaking oil both |2.3.3| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Rear Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |