| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 43 |
| Steering headbearing has excessive free play |2.2.2| | 24 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 20 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 12 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Registration plate lamp issues | 9 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 7 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 7 |
| Throttle operating incorrectly |6.2.1f| | 6 |
| Exhaust excessively deteriorated |7.1.1a| | 6 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 6 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Registration plate issues | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Front Steering headbearing has excessive free play |2.2.2| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Horn not working (7.7 (a) (ii)) | 5 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 4 |
| Nearside Front Direction indicators not working |1.5.1c| | 4 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 4 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Horn not working |1.7.3a| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Exhaust system insecure (6.1.2 (a)) | 3 |
| Riders seat insecure (6.2.5 (a) (ii)) | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Horn control defective |1.7.2a| | 2 |
| Rear Brake lever insecure |3.1.2a| | 2 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Nearside Front Direction indicator insecure |1.5.3b| | 2 |
| Rear Brake lever pivots excessively worn |3.1.3a| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 2 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Shock absorber has negligible damping effect no damping (5.3.2 (b)) | 2 |
| Front Brake grabbing severely (1.2.1 (c)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Headlamp insecure (4.1.1 (c)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Side stand nut loose. |6.2.1h| | 1 |
| Front shock absorber seal failed and leaking oil both |2.3.3| | 1 |
| Nearside Rear Rear shock absorber has inadequate damping effect. rear shock has blown seals and has no damping |2.4.A.3b| | 1 |
| Centre Front Upper Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Centre Front Front mudguard insecure |2.3.7| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Centre Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake hose stretched by steering movement |3.2.B3b| | 1 |
| Rear Brake lever attachment screws loose |3.1.2b| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Nearside Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Centre Rear Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Exhaust excessively deteriorated Holed in underside silencer and pipe joint |7.1.1a| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Direction indicators flashing less than 60 times a minute all |1.5.1c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front position lamp missing |1.1.1a| | 1 |
| Offside Front position lamp missing |1.1.1a| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake hose damaged | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Headlamp not working on main beam plus has electrical issues on lighting. |4.1.1 |a| |ii|| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear lever switch |1.3.1a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Rear Riders seat insecure |6.2.1a| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Exhaust is leaking and excessively noisey rear of exhaust blowing repaired |7.1.1b| | 1 |
| Offside Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Front Upper Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Brake lever attachment screws loose |3.1.2b| | 1 |
| Central Front Upper Steering operation impeded by a fairing HANDLE BAR COVER BROKEN AND LOOSE |2.1.4 |e|| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Exhaust excessively deteriorated exhaust excessively deteriorated and exceeding noise levels |7.1.1a| | 1 |
| Nearside Front Brake lever insecure |3.1.2a| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Central Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Brake lever is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Centre Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Direction indicator insecure BOTH FRONT ONES built in to front cowl |1.5.3b| | 1 |
| Steering linkage has excessive free play |2.2.2| | 1 |
| Nearside Brake lever attachment screws loose rear brake lever pivot |3.1.2b| | 1 |
| Front Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake lever not releasing correctly and functionality of brakes affected |1.1.2 |b| |ii|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Centre Lower Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Position lamp likely to become detached |4.2.1 |c| |ii|| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies faulty brake light switch |1.3.1a| | 1 |
| Rear Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel just nneded ajusting on the drum |3.1.3b| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies not working of rear brake lever |1.3.1a| | 1 |
| Central Front Inner Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Brake lever is positioned so that the brake cannot be readily applied wrong lever fitted |3.1.3c| | 1 |
| Front Brake lever insecure lock nut missing |3.1.2a| | 1 |
| Front Stop lamp remains on when the brake is released wrong lever fitted |1.3.1e| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies cannot be checked as front on continuosly |1.3.1a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on cannot be checked as brake light on |1.1.3a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Nearside Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Nearside Brake lever insecure |1.1.2 |e| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Stop lamp not working from rear brake lever |4.3.1 |a| |ii|| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Rear Lower Motorcycle structure has a fracture which is likely to adversely affect braking or steering (6.1.1 (a) (ii)) | 1 |
| Front Front wheel bearings are excessively rough (2.3.5b) | 1 |
| Headlamp not working on main beam plus has electrical issues on lighting. (4.1.1 (a) (ii)) | 1 |
| Front Position lamp adversely affected by the operation of another lamp headlamp affected when brake light applied (4.2.3 (b)) | 1 |
| Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Rear Brake lever pivot excessively worn (1.1.1 (b)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Front Indicator tell tale not functioning (1.5.2) | 1 |
| Offside Rear Direction indicator lens defective such that the emitted light is adversely affected lens missing. (4.4.1 (b) (ii)) | 1 |
| Front Brake lever so insecure that the brake cannot be readily applied front brake lever broken (1.1.2 (e) (ii)) | 1 |
| Nearside Rear Suspension component pin or bush excessively worn swinging arm/engine mount (5.3.4 (a) (i)) | 1 |
| Offside Rear Suspension component pin or bush excessively worn swinging arm/engine mount (5.3.4 (a) (i)) | 1 |
| Steering operation impeded by a fairing (2.1.4 (e)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Nearside Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Rear Road spring fractured (5.3.1 (b) (i)) | 1 |
| Handlebar mounting insecure handlebars loose (2.2.1 (a) (i)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Brake lever has restricted free movement front brake not smooth (1.1.15 (e)) | 1 |
| Brake lever pivot has excessive free play rear break lever does not fully return and brake light stays on (1.1.1 (b)) | 1 |
| Stop lamp not working front brake switch inconsistent operation (4.3.1 (a) (ii)) | 1 |
| Brake lever has insufficient reserve travel rear brake does not lock on roller test (1.1.2 (a)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Brake master cylinder defective but brake still operating lever action notchy (1.1.10 (b) (i)) | 1 |
| Brake lever not releasing correctly and functionality of brakes affected catching on front panel (1.1.2 (b) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected very high idle (6.2.7 (a) (ii)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Upper Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Central Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Central Front Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Central Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Nearside Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Handlebar so insecure it is likely to become detached Free play left to right (2.2.1 (b) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |