| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 21 |
| Headlamp aim out of alignment | 19 |
| Steering headbearing has excessive free play |2.2.2| | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Stop lamp remains on when the brake is released |1.3.1e| | 7 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 7 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 6 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Stop lamp remains on when the brakes are released | 5 |
| Offside Rear Direction indicators not working |1.5.1c| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Registration plate issues | 4 |
| Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Nearside Rear Direction indicators not working |1.5.1c| | 4 |
| Registration plate lamp issues | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Rear Brake excessively binding |1.2.1 |f|| | 3 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Nearside Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 3 |
| Offside Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 2 |
| Fuel system component leaking |6.1.3 |b| |i|| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Offside Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Offside Stop lamp not working lever (4.3.1 (a) (ii)) | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Steering headbearing has excessive free play forks loose |2.2.2| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Brake hose damaged | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Central Lower Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working from n/s lever (4.3.1 (a) (ii)) | 1 |
| Nearside Motorcycle structure joining/attachment plate or fastening insecure side stand (6.1.1 (b) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Nearside Rear Direction indicators not working (1.5.1c) | 1 |
| Front Brake caliper insecure |1.1.16 |c| |i|| | 1 |
| Front Brake caliper has no reserve travel and braking performance affected |1.1.16 |e| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement |6.1.8 |a| |i|| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Motorcycle structure adversely modified Mudguard missing |6.1.1b| | 1 |
| Rear suspension component loose swing arm bushes |2.4.A.1a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Central Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 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 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Front Brake has no recorded effort at a wheel front pads worn to metal, front brake test not carried out (1.2.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Nearside Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Fuel cap ineffective |6.1.3 |b| |i|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Upper Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Front Forks excessively corroded (2.2.2 (d) (i)) | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Road spring corroded so that its cross sectional area is reduced and seriously weakened |5.3.1 |b| |i|| | 1 |
| Rear Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Suspension component pin or bush excessively worn engine mounts (5.3.4 (a) (i)) | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Upper Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Rear Lower Direction indicators not working |1.5.1c| | 1 |
| Centre Rear Lower Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Lower Brake component damaged and seriously reduced in strength |3.2.A1| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp not working FUSE FITTED |4.3.1 |a| |ii|| | 1 |
| Rear reflector missing STICK ON FITTED |4.8.2 |a| |ii|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Front Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Rear Rear suspension bush has excessive free play engine moves in frame |2.4.A2a|i|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies when applying rear brake |1.3.1a| | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort excessive run out on front brake disc (1.2.1 (e)) | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear brake |1.3.1a| | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Nearside Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced |6.1.1 |b| |ii|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| All direction indicators not working not flashing (4.4.1 (a) (ii)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Offside Rear Lower Rear suspension component loose shock lower nut loose |2.4.A.1a| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Suspension component has excessive wear or free play Fork sliding stanchions and bushes worn - including fork chrome missing |5.3.3 |d|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Offside Front Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Horn not working |1.7.3a| | 1 |
| Nearside Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front Front suspension assembly component excessively corroded. stanchion heavily pitted |2.3.1| | 1 |
| Front position lamp incorrect colour green |1.1.2a| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake component defective due to a deliberate modification which significantly reduces the original strength brake cable linkage unacceptable repair |3.1.5| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Lower Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced |6.1.1 |b| |ii|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Exhaust has a major leak of exhaust gases small pipe (6.1.2 (a)) | 1 |
| Lower Rear suspension bush has excessive free play Engine mount bush/swingarm bearings |2.4.A2a|i|| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component forks |2.3.4| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component Fork bushes |2.3.4| | 1 |
| Front shock absorber seal failed and leaking oil Both o/s & n/s |2.3.3| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Throttle operating incorrectly Sticky (6.2.7 (a) (i)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 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 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Stop lamp not working Rear brake switch inoperative (4.3.1 (a) (ii)) | 1 |
| Rear Rear reflector missing Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Front All direction indicators not working |4.4.1 |a| |ii|| | 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 Inner Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |