| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 32 |
| Registration plate lamp issues | 30 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 8 |
| Stop lamp remains on when the brakes are released | 8 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 7 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 6 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 5 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 5 |
| Horn not working (7.7 (a) (ii)) | 5 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Rear Position lamp not working (4.2.1 (a)) | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 3 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Registration plate issues | 3 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 3 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 3 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Exhaust system insecure (6.1.2 (a)) | 3 |
| 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)) | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Rear Brake excessively binding |1.2.1 |f|| | 2 |
| Front Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 2 |
| Front brake disc in such a condition that it is seriously weakened | 2 |
| Riders seat insecure |6.2.5 |a| |ii|| | 2 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Central Rear Upper Stop lamp not working bulb blown in rear light - PRS |4.3.1 |a| |ii|| | 1 |
| Central Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Central Rear All position lamps do not illuminate immediately when switched on NUMBER PLATE |1.1.3a| | 1 |
| Throttle operating incorrectly does not return |6.2.1f| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Brake hose is likely to be fouled or trapped by moving parts clip insecure |3.2.B2c| | 1 |
| Nearside Rear Brake locking device insecure cable insecure |3.2.A1e| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front shock absorber seal failed and leaking oil both |2.3.3| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Stop lamp not working from front brake switch |4.3.1 |a| |ii|| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies Switch |1.3.1a| | 1 |
| Rear Brake lever insecure rear brake lever pivot bolt loose and lock nut missing |3.1.2a| | 1 |
| Front Brake disc contaminated oil from leaking from fork seal |1.1.14 |b|| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Brake lever insecure |1.1.2 |e| |i|| | 1 |
| Offside Front Throttle operating incorrectly sticking revs dont drop to idle |6.2.1f| | 1 |
| Steering lock stop ineffective right hand lock |2.1.3| | 1 |
| Offside Front Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Steering control handlebar movement restricted by cables caught on a projection or damage |2.1.2c| | 1 |
| Central Front Upper Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Brake excessively binding |1.2.1 |f|| | 1 |
| Front Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Front Shock absorber has negligible damping effect sticking down |5.3.2 |b|| | 1 |
| Front Fork yoke in such a condition that steering control is adversely affected steering sticks in r/h lock |2.2.2 |d| |ii|| | 1 |
| Offside Front Upper Engine mounting/bracket excessively loose |6.1.8 |a| |ii|| | 1 |
| Offside Rear Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Offside Rear Exhaust system insecure |6.1.2 |a|| | 1 |
| Rear Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Shock absorber has a serious fluid leak both front |5.3.2 |b|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Wheel excessively damaged |5.2.2 |c| |i|| | 1 |
| Brake disc significantly and obviously worn Front |1.1.14 |a| |i|| | 1 |
| Brake excessively binding Front |1.2.1 |f|| | 1 |
| Stop lamp not working rear control |4.3.1 |a| |ii|| | 1 |
| Handlebar mounting so insecure that steering is adversely affected |2.2.1 |a| |ii|| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Suspension component pin or bush likely to become detached FRONT SPINDLE |5.3.4 |a| |ii|| | 1 |
| Stop lamp does not illuminate immediately a brake applies both |1.3.1a| | 1 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Rear Brake cable has restricted free movement (1.1.15 (e)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure front fender (6.1.1 (b) (i)) | 1 |
| Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort Replace front disc (1.2.1 (e)) | 1 |
| Front Handlebar fractured and steering adversely affected (2.2.1 (c) (ii)) | 1 |
| Rear Brake lever pivot excessively worn lever (1.1.1 (b)) | 1 |
| Central Rear Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Nearside Front Brake lever pivot excessively worn (1.1.1 (b)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp not working Rear brake lamp switch not working (4.3.1 (a) (ii)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Central Front Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Brake lever insecure Securing bolt loose/nut missing. (1.1.2 (e) (i)) | 1 |
| Offside Brake lever insecure Securing bolt/nut loose. (1.1.2 (e) (i)) | 1 |
| Brake hose damaged | 1 |
| Handlebar mounting insecure Handle bars have excessive free play at joint to top of front headstock/front forks. Unable to examine cause as plastic trims fitted. (2.2.1 (a) (i)) | 1 |
| Stop lamp not working Rear (4.3.1 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Front Brake component inadequately mounted (1.1.21 (c)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Brake lever has insufficient reserve travel lever pulls back to bars (1.1.2 (a)) | 1 |
| Rear Brake cable excessively worn (1.1.15 (b)) | 1 |
| Throttle operating incorrectly revs to high on tick over (6.2.7 (a) (i)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Suspension component insecure and control of the motorcycle impaired Nearside Fork seal blown (5.3.3 (a) (ii)) | 1 |
| Offside Rear Exhaust has a major leak of exhaust gases Silencer Holed (6.1.2 (a)) | 1 |
| Nearside Front Brake pedal is bent and the brake cannot be readily applied Bent brake lever (1.1.2 (d)) | 1 |
| Nearside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Nearside Brake lever excessively worn REAR BRAKE LEVER BENT POOR BRAKE SERVICE REAR BRAKE (1.1.15 (b)) | 1 |
| Nearside Front Direction indicator likely to become detached LENS BROKEN SHARP EDGES (4.4.1 (c) (ii)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Stop lamp not working from front brake lever (4.3.1 (a) (ii)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Fork yoke in such a condition that steering control is adversely affected Steering loose (2.2.2 (d) (ii)) | 1 |
| Vehicle identification number not displayed (0.2 (a)) | 1 |
| Horn not working (7.7 (a)) | 1 |