| Most common failures | No# failures |
|---|
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 9 |
| Headlamp aim out of alignment | 7 |
| Horn not working (7.7 (a) (ii)) | 6 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Registration plate lamp issues | 4 |
| Rear Position lamp not working (4.2.1 (a)) | 4 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| 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)) | 2 |
| Headlamp insecure (4.1.1 (c)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 2 |
| Rear Brake grabbing severely (1.2.1 (c)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Exhaust has a major leak of exhaust gases EGR Valve take off pipe (6.1.2 (a)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Front Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Brake fluid not visible (1.1.10 (d) (iii)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak Both sides (5.3.2 (b)) | 1 |
| Exhaust has a major leak of exhaust gases Downpipe (6.1.2 (a)) | 1 |
| Rear Stop lamp not working bulb blown (4.3.1 (a) (ii)) | 1 |
| Front Motorcycle structure inadequately repaired such that it is likely to adversely affect braking or steering front forks are loosely fitted due to inadequate fitting dangerous (6.1.1 (d) (ii)) | 1 |
| Front Fork yoke in such a condition that steering control is adversely affected (2.2.2 (d) (ii)) | 1 |
| Fork yoke insecure forks are not not correctly fastened in yokes (2.2.2 (d) (i)) | 1 |
| Nearside Rear Upper Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear Upper Direction indicator incorrect colour amber bulbs are white (heat damaged) (4.4.3 (a)) | 1 |
| Nearside Front Upper Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Direction indicator incorrect colour Both rear (4.4.3 (a)) | 1 |
| Position lamp switch does not operate in accordance with the requirements only works intermittent (4.2.2 (a)) | 1 |
| Central Front Headlamp not working on main beam bulb blown (4.1.1 (a) (ii)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Throttle control functioning such that safe operation of the motorcycle is adversely affected irratic (6.2.7 (a) (ii)) | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Brake cylinder insecure front master cylinder (1.1.16 (c) (i)) | 1 |
| Brake hose excessively deteriorated | 1 |
| Rear Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect x2 (5.3.2 (b)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected reving to high (6.2.7 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear Brake lever insecure Main rear brake lever perch damaged/broken. |1.1.2 |e| |i|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle housing/switch gear loose. |6.2.7 |a| |ii|| | 1 |
| Steering operation impeded by a fairing (2.1.4 (e)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Front Wheel spindle loose |5.2.1 |c| |i|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Motorcycle structure has a fracture which is likely to adversely affect braking or steering Rear mudguard broken and insecure (6.1.1 (a) (ii)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Central Front Position lamp light intensity significantly reduced no dip beam (4.2.3 (a) (ii)) | 1 |
| Central Front Position lamp light intensity significantly reduced no main beam (4.2.3 (a) (ii)) | 1 |
| Offside Front Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Central Front Shock absorber has a serious fluid leak both fork seals leaking (5.3.2 (b)) | 1 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator 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 |
| Nearside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear Upper Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Front Wheel more than one fixing missing (5.2.1 (a) (ii)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Rear Stop lamp not working brake (4.3.1 (a) (ii)) | 1 |
| Fuel hose leaking (6.1.3 (b) (i)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement causing bodywork to hit the airbox, wearing in to it (6.1.8 (a) (i)) | 1 |
| Fork yoke in such a condition that steering control is adversely affected |2.2.2 |d| |ii|| | 1 |
| Front Suspension component insecure and control of the motorcycle impaired play in headstock |5.3.3 |a| |ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal |5.3.2 |b|| | 1 |
| Front Suspension component insecure and control of the motorcycle impaired |5.3.3 |a| |ii|| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Central Front Headlamp not working on dipped beam headlamp goes off when switch touched (4.1.1 (a) (ii)) | 1 |
| Nearside Front Lower Shock absorber has a serious fluid leak Fork seal leaking oil down fork leg close to the braking area (5.3.2 (b)) | 1 |
| Nearside Front Lower Brake component inadequately mounted Brake pipe is adrift secure mounting missing and is chaffing fairing (1.1.21 (c)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock front brake line (2.1.4 (a)) | 1 |
| Rear Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |