| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 11 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Brake hose excessively deteriorated | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Steering movement excessively notchy with the weight on the lower bearing (2.2.1a) | 2 |
| Front position lamp does not illuminate immediately when switched on (1.1.3a) | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Front Brake grabbing severely (1.2.1 (c)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Brake locking device missing split pin |3.2.A1e| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Centre Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Front suspension has excessive stiffness in the suspension movement. Both forks have very limited movement & no damping |2.3.6b| | 1 |
| Offside Rear Brake back plate|s| insecure locking pin missing |split pin or `R` clip| |3.2.A1j| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Front Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp aim headlamp deteriorated and function impaired bulb |1.2.3a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Wheel alignment incorrect which adversely affects the steering Chain tensioners incorrectly adjusted. Over adjusted on right hand side. |2.5.1| | 1 |
| Front Front mudguard insecure Mounting bolts missing or loose. |2.3.7| | 1 |
| Rear Brake back plate|s| securing bolt|s| loose Locking device |split pin| missing from brake plate anchor bolt. |3.2.A1j| | 1 |
| Rear Front mudguard insecure 2 x bolt missing. |2.3.7| | 1 |
| Front Front suspension assembly component excessively bent Fork tubes badly bent, causing wheels to be out of line. |2.3.1| | 1 |
| Front Front suspension has inadequate damping effect. Damping poor. |2.3.6c| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp aim headlamp damaged and function impaired (1.2.3a) | 1 |
| Front Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Nearside Rear Direction indicator incorrect colour white (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour white (4.4.3 (a)) | 1 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 1 |
| Front Suspension component attachment bracket/mounting damaged and seriously weakened forks bent, deformed (5.3.3 (b) (i)) | 1 |
| Steering operation restricted in free movement from lock to lock badly routed wiring harness impedes operation of steering (2.1.4 (c)) | 1 |
| Direction indicator obviously incorrectly positioned rear indicators too close together (4.4.3 (a)) | 1 |
| Fuel cap ineffective does not fit correctly does not lock so could leak when tank has more fuel in side (6.1.3 (b) (i)) | 1 |
| Front Valve stem seriously damaged cracked (5.2.3 (j)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Fuel cap ineffective seal has been cut in two places. (6.1.3 (b) (i)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted joining link incorrectly assembled and securing clip facing wrong direction. (6.1.7 (j) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Rear Brake rod insecure brake drum rod missing both locking devises and securing nuts both less than hand tightness. (1.1.15 (c)) | 1 |
| Offside Rear Brake pedal has insufficient reserve travel suffcient brake effort cannot be achived. (1.1.2 (a)) | 1 |
| Steering headbearing excessively stiff or notchy steering is both overly stiff and notchy (2.2.2 (f) (i)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar grip can slide off of handlebar. (2.2.1 (d) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Suspension arm pin or bush excessively worn excessive play in swing arm bearings (5.3.4 (a) (i)) | 1 |