| Most common failures | No# failures |
|---|
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 32 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 30 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 26 |
| Headlamp aim out of alignment | 25 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 12 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 11 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 10 |
| Stop lamp remains on when the brakes are released | 9 |
| Front brake disc in such a condition that it is seriously weakened | 9 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 9 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 8 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 8 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 6 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 6 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 6 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Handlebar mounting so insecure that steering is adversely affected (2.2.1 (a) (ii)) | 5 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 5 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Registration plate issues | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Rear Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 4 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 4 |
| Rear Brake excessively binding (1.2.1 (f)) | 4 |
| Front Brake grabbing severely (1.2.1 (c)) | 4 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 4 |
| Front Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Front Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 3 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Brake lever excessively worn (1.1.15 (b)) | 3 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Brake disc contaminated (1.1.14 (b)) | 3 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Fuel cap missing (6.1.3 (b) (i)) | 2 |
| Nearside Front Upper Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Brake cylinder operating mechanism has excessive travel (1.1.16 (e) (i)) | 2 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 2 |
| Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 2 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Rear Brake effort inadequate at a wheel Adjusted rear brake (1.2.1 (a) (i)) | 2 |
| Nearside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Front Shock absorber has negligible damping effect Both (5.3.2 (b)) | 2 |
| Brake disc in such a condition that it is seriously weakened (1.1.14 (a) (ii)) | 2 |
| Rear Brake drum significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 2 |
| Nearside Front Upper Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Rear Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Rear Exhaust silencer insecure (8.1.1 (b) (i)) | 2 |
| Front Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Steering headbearing excessively stiff or notchy Excessive notch (2.2.2 (f) (i)) | 1 |
| Rear Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Brake performance unable to be tested (1.2.1 (g)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Nearside Front Brake lever has insufficient reserve travel Rear brake lever (1.1.2 (a)) | 1 |
| Offside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Steering linkage component deformed (2.1.3 (c) (i)) | 1 |
| Fork yoke excessively deformed (2.2.2 (d) (i)) | 1 |
| Forks in such a condition that steering control is adversely affected (2.2.2 (d) (ii)) | 1 |
| Rear Wheel more than one fixing loose (5.2.1 (a) (ii)) | 1 |
| Rear Wheel hub worn to the extent that wheel security is adversely affected (5.2.1 (b) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Brake lever is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Brake lever is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Nearside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Upper Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Central Front Upper Handlebar mounting insecure handlebars moving forward and backwards with light effort (2.2.1 (a) (i)) | 1 |
| Offside Front Stop lamp switch with a delay in operation brake switch for rear brake (4.3.2 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar control 2 (2.2.1 (d) (ii)) | 1 |
| Offside Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Front Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Nearside Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Offside Front Brake fluid contaminated (1.8 (a)) | 1 |
| Front Direction indicator not working both (4.4.1 (a) (ii)) | 1 |
| Rear Brake lever has insufficient reserve travel control (1.1.2 (a)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp emits other than a steady red light Goes out with increased brake pressure (4.3.3 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect seized (5.3.2 (b)) | 1 |
| Central Front Upper Handlebar retaining device loose excessive movement on handle bar. (2.2.1 (b) (i)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Front Brake disc significantly and obviously worn disc bent (1.1.14 (a) (i)) | 1 |
| Brake lining(s) less than 1.0 mm thick front pad (1.1.13 (a)) | 1 |
| Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Forks fractured forks seal (2.2.2 (d) (i)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Nearside Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Nearside Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Offside Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Offside Front Stop lamp not working brake control (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working front brake (control 1) (4.3.1 (a) (ii)) | 1 |
| Offside Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Nearside Rear Brake lever has insufficient reserve travel rear brake lever has no reserve travel. (1.1.2 (a)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Forks fractured (2.2.2 (d) (i)) | 1 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Front Brake lever is bent and the brake cannot be readily applied both front levers (1.1.2 (d)) | 1 |
| Nearside Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Riders seat insecure catch missing/broken (6.2.5 (a) (ii)) | 1 |
| Offside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Front Brake disc significantly and obviously worn front disc below 3m minimum mark (1.1.14 (a) (i)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Forks insecure (2.2.2 (d) (i)) | 1 |
| Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Front Exhaust system insecure (6.1.2 (a)) | 1 |
| Stop lamp not working Front control (4.3.1 (a) (ii)) | 1 |
| Front Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Rear Brake effort inadequate at a wheel Cable out of adjustment (1.2.1 (a) (i)) | 1 |
| Rear Brake lever has insufficient reserve travel Touches handlebar (1.1.2 (a)) | 1 |
| Rear Wheel hub excessively worn Excessive movement in rear wheel (5.2.1 (b) (i)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 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 Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Front Motorcycle structure is so deformed it is likely to adversely affect braking or steering (6.1.1 (a) (ii)) | 1 |
| Front Motorcycle structure is deformed and structural rigidity is significantly reduced (6.1.1 (a) (i)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Brake lever is bent and the brake cannot be readily applied both (1.1.2 (d)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Brake lining(s) contaminated back brake (1.1.13 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak forkseal (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |