| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 25 |
| Registration plate lamp issues | 12 |
| Rear reflector missing (4.8.2 (a) (ii)) | 11 |
| Registration plate issues | 5 |
| Horn not working (7.7 (a)) | 4 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 4 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 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 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Steering operation linkage fouling when handlebars turned from lock to lock throttle sticking on when turned |2.1.4 |a|| | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Offside Rear Footrest insecure (6.2.12 (a)) | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Horn sound not in accordance with requirements |7.7 |c|| | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp not working Switch on rear brake pedal |4.3.1 |a| |ii|| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Nearside Rear Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Rear All direction indicators light intensity significantly reduced (4.4.3 (a)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock engine cuts out |2.1.4 |a|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected due to cutting out when lock to lock /suspect broken wire in loom |6.2.7 |a| |ii|| | 1 |
| Footrest missing rear foot rests missing (6.2.12 (a)) | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake lever has restricted free movement |1.1.15 |e|| | 1 |
| Central Horn not working |7.7 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator missing |4.4.1 |a| |ii|| | 1 |
| Rear Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Front Brake performance not tested |1.2.1 |g|| | 1 |
| Rear Brake performance not tested |1.2.1 |g|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Offside Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Offside Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Rear Lower Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Brake performance not tested Front brake binding heavily (1.2.1 (g)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Brake caliper inadequately mounted bolt missing from rear (1.1.16 (c) (i)) | 1 |
| Brake hose damaged and likely to fail brake hose too long and cable tied to fork leg (1.1.12 (a)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock brake hose hitting tank hose too long (2.1.4 (b)) | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Lower Shock absorber has an excessively worn bush bearing has collapsed (5.3.2 (c)) | 1 |
| Suspension rod damaged and seriously weakened bottom of shock bent (5.3.3 (b) (i)) | 1 |
| Throttle operating incorrectly throttle sticks at full throttle (6.2.7 (a) (i)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Shock absorber has an excessively worn bush upper rear shock bush (5.3.2 (c)) | 1 |
| Exhaust silencer insecure rear exhaust mounting is not secure.exhaust is contacting the rear suspension arm (8.1.1 (b) (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Steering operation restricted in free movement from lock to lock Brake hose becoming trapped between frame and yoke on left hand lock (2.1.4 (c)) | 1 |
| Rear Lower Suspension component fractured Shock absorber mounting (5.3.3 (b) (ii)) | 1 |
| Rear Lower Suspension component damaged and seriously weakened Shock absorber mounting (5.3.3 (b) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Brake fluid reservoir fluid level significantly below minimum level |1.1.10 |d| |ii|| | 1 |
| Nearside Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Steering headbearing has excessive wear or free play Cap nut loose (2.2.2 (f) (i)) | 1 |
| Rear Brake performance not tested (1.2.1 (g)) | 1 |
| Steering operation restricted in free movement from lock to lock ignition switch not fastened and fouling steering |2.1.4 |c|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock Ignition switch insecure and fowling steering movement |2.1.4 |a|| | 1 |
| Central Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested light source not compatible (4.1.2 (b)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |