| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 36 |
| Registration plate lamp issues | 33 |
| Stop lamp remains on when the brakes are released | 11 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 9 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 7 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 5 |
| Rear Brake excessively binding (1.2.1 (f)) | 5 |
| Brake hose damaged | 4 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 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 Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 2 |
| Rear Brake excessively binding |1.2.1 |f|| | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Registration plate issues | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 2 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Steering headbearing has excessive wear or free play NOTCHED |2.2.2 |f| |i|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure mudguard |6.1.1 |b| |i|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Position lamp adversely affected by the operation of another lamp |4.2.3 |b|| | 1 |
| Roller brake test brake efficiency less than 27.5% overall |1.2.2 |a| |ii|| | 1 |
| Front Wheel bearing play so excessive that directional control is impaired |5.1.3 |a| |ii|| | 1 |
| Rear Brake lever is so short that the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Offside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Steering operation restricted in free movement from lock to lock (Speedometer Cable being pulled) (2.1.4 (c)) | 1 |
| Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear Brake lever has insufficient reserve travel Rear break lever (1.1.2 (a)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Rear Brake cable has restricted free movement (1.1.15 (e)) | 1 |
| Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Front Brake excessively binding (1.2.1 (f)) | 1 |
| Central Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Stop lamp not working front brake light (4.3.1 (a) (ii)) | 1 |
| Rear Wheel spindle loose excessive play in rear wheel (5.2.1 (c) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Brake effort inadequate at a wheel adjusted (1.2.1 (a) (i)) | 1 |
| Nearside Steering operation linkage fouling when handlebars turned from lock to lock locks on full left lock and sticks (2.1.4 (a)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Brake lever has insufficient reserve travel rear (1.1.2 (a)) | 1 |
| Rear Stop lamp not working Front Control (4.3.1 (a) (ii)) | 1 |
| Rear Brake component inadequately mounted Loose on spline fitment (1.1.21 (c)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Nearside Front Brake pipe likely to become detached or damaged Brake hose routed incorrectly and rubbing on fairing, also not sitting in mounting points on fork as pipe to tight.
(Routed correctly and secured) (1.1.11 (d) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort At the point of maximum braking. (1.2.1 (e)) | 1 |
| Rear Shock absorber likely to become detached (5.3.2 (a) (ii)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Nearside Brake lever pivot has excessive free play (1.1.1 (b)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Rear Stop lamp not working on rear control (4.3.1 (a) (ii)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Shock absorber has a serious fluid leak n/s & o/s (5.3.2 (b)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Front Stop lamp does not illuminate by the operation of both brake controls brake light switch not working (4.3.2 (a) (iii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Offside Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Stop lamp not working rear lever (4.3.1 (a) (ii)) | 1 |
| Rear Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |