| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 50 |
| Headlamp aim out of alignment | 21 |
| Front Brake excessively binding (1.2.1 (f)) | 15 |
| Rear reflector missing (4.8.2 (a) (ii)) | 13 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 11 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 10 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 8 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 8 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 7 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 6 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 6 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 5 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 5 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 4 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 4 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 4 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 4 |
| Rear Brake excessively binding (1.2.1 (f)) | 4 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 3 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 3 |
| Exhaust system insecure (6.1.2 (a)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 3 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Offside Rear Footrest missing (6.2.12 (a)) | 3 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 3 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Offside Rear Footrest insecure (6.2.12 (a)) | 2 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Rear Brake pedal anti-slip provision missing (1.1.2 (c)) | 2 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Nearside Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Front Brake disc fractured (1.1.14 (a) (ii)) | 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 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Brake hose damaged and likely to fail rear silencer fouling brake hose (1.1.12 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock traps hand on turning bars full to left (2.1.4 (a)) | 1 |
| Rear reflector missing covered by learner plate (4.8.2 (a) (ii)) | 1 |
| Rear Drive chain sprocket worn to excess and attachment bolts lose (6.1.7 (c) (i)) | 1 |
| Central Rear Lower Rear reflector missing Obstructed by rear L plate (4.8.2 (a) (ii)) | 1 |
| Handlebar so insecure it is likely to become detached right hand (2.2.1 (b) (ii)) | 1 |
| Drive chain sprocket so worn it is likely to fail rear sprocket (6.1.7 (c) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy Stiff and Notchy (2.2.2 (f) (i)) | 1 |
| Suspension arm attachment bracket/mounting insecure swing arm (5.3.3 (a) (i)) | 1 |
| Steering operation restricted in free movement from lock to lock restricted on left lock trapping on front brake hosse (2.1.4 (c)) | 1 |
| Rear Brake has no recorded effort at a wheel no rear brake no pressure in pedal (1.2.1 (a) (ii)) | 1 |
| Front Exhaust has a major leak of exhaust gases exhaust blow from head (6.1.2 (a)) | 1 |
| Central Rear Inner Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Suspension arm pin or bush excessively worn swing arm bush/bearing (5.3.4 (a) (i)) | 1 |
| Front Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Drive chain sprocket so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Brake caliper has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 1 |
| Rear Brake performance unable to be tested (1.2.1 (g)) | 1 |
| Position lamp switch does not operate in accordance with the requirements (4.2.2 (a)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (Fork Seal) (5.3.2 (b)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Suspension arm insecure and control of the motorcycle impaired (5.3.3 (a) (ii)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Offside Rear Brake master cylinder insecure (1.1.10 (c)) | 1 |
| Offside Front Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Rear reflector missing Reflective tape is not an acceptable substitute for a rear reflector. (4.8.2 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Not working off front brake (4.3.2 (a) (iii)) | 1 |
| Wheel spindle locking device ineffective (5.2.1 (d)) | 1 |
| Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Rear Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Front Brake excessively binding brake not releasing after rear brake test to front wheel combind braking (1.2.1 (f)) | 1 |
| Rear Suspension arm pin or bush excessively worn trailing arm (5.3.4 (a) (i)) | 1 |
| Steering headbearing excessively stiff or notchy also free play (2.2.2 (f) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering front wheel and handle bars out of alignment (2.4 (a)) | 1 |
| Handlebar mounting insecure right handle bar insecure (2.2.1 (a) (i)) | 1 |
| Rear Footrest insecure (6.2.12 (a)) | 1 |
| Rear Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Shock absorber has a serious fluid leak front forks seal leaking oil (5.3.2 (b)) | 1 |
| Front Brake component modification adversely affecting braking performance (1.1.21 (d) (ii)) | 1 |
| Front Forks excessively corroded both (2.2.2 (d) (i)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Central Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Offside Front Direction indicator not working O/S front indicator not working (4.4.1 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases end can where pipe goes in (6.1.2 (a)) | 1 |
| Rear Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Central Rear Upper Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Exhaust system insecure tied to swing arm (6.1.2 (a)) | 1 |
| Footrest insecure mounting broken (6.2.12 (a)) | 1 |
| Nearside Steering operation fouling on the fuel tank or bodywork on full lock lock stop damaged near side (2.1.4 (b)) | 1 |
| Steering headbearing excessively stiff or notchy excessively notchy (2.2.2 (f) (i)) | 1 |
| Suspension arm pin or bush excessively worn rear swing arm bearings excessive play (5.3.4 (a) (i)) | 1 |
| Offside Front Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Offside Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Rear Wheel spindle locking device missing tensioner plate adjuster missing (5.2.1 (d)) | 1 |
| Rear Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Front brake light switch (4.3.2 (a) (iii)) | 1 |
| Stop lamp not working when brake lever applied (4.3.1 (a) (ii)) | 1 |
| Rear Upper Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned need to be 180mm apart (4.4.3 (a)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Nearside Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 1 |
| Rear Brake pedal anti-slip provision missing rubber missing (1.1.2 (c)) | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Fork yoke in such a condition that steering control is adversely affected (2.2.2 (d) (ii)) | 1 |
| Motorcycle structure is so deformed it is likely to adversely affect braking or steering (6.1.1 (a) (ii)) | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Offside Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Front Brake excessively binding locking up (1.2.1 (f)) | 1 |
| Rear Brake excessively binding rear binding (1.2.1 (f)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Front Motorcycle structure is so deformed it is likely to adversely affect braking or steering Head stock mount deformed that bad handle bars are hitting tank and crushing hand (6.1.1 (a) (ii)) | 1 |
| Offside Rear Brake effort inadequate at a wheel Rear brake is not locking out on test (1.2.1 (a) (i)) | 1 |
| Nearside Front Brake excessively binding (1.2.1 (f)) | 1 |
| Central Rear Suspension component pin or bush excessively worn swing arm bushes have successive free play side to side (5.3.4 (a) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Steering headbearing excessively stiff or notchy Notchy (2.2.2 (f) (i)) | 1 |
| Suspension arm pin or bush excessively worn in swing arm pivot (5.3.4 (a) (i)) | 1 |
| Exhaust has a major leak of exhaust gases front pipe to cylinder head (6.1.2 (a)) | 1 |
| Brake performance unable to be tested front and rear binding (1.2.1 (g)) | 1 |
| Rear Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Front Headlamp incorrect colour blue light (4.1.4 (a)) | 1 |
| Front Steering operation linkage fouling when handlebars turned from lock to lock wiring loom (2.1.4 (a)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Brake hose excessively stretched (1.1.12 (b) (ii)) | 1 |
| Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Nearside Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Fork yoke insecure bolts are loose (2.2.2 (d) (i)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Handlebar restricted in free movement from lock to lock Handle bar hitting tank (2.1.4 (c)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |