| Most common failures | No# failures |
|---|
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 34 |
| Rear reflector missing (4.8.2 (a) (ii)) | 26 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 20 |
| Registration plate lamp issues | 20 |
| Headlamp aim out of alignment | 14 |
| Horn not working (7.7 (a)) | 13 |
| Front Brake excessively binding (1.2.1 (f)) | 10 |
| Horn not working (7.7 (a) (ii)) | 9 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 8 |
| Stop lamp remains on when the brakes are released | 8 |
| Rear Brake excessively binding (1.2.1 (f)) | 8 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 7 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 7 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Headlamp aim not tested (4.1.2 (b)) | 6 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 5 |
| Nearside Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Registration plate issues | 3 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 3 |
| Central Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 3 |
| Front Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 3 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 2 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Nearside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Front Headlamp aim unable to be tested (4.1.2 (b)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Front Horn not working (7.7 (a) (ii)) | 2 |
| Offside Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Headlamp aim not tested headlight not working (4.1.2 (b)) | 1 |
| Engine mounting/bracket excessively loose (6.1.8 (a) (ii)) | 1 |
| Headlamp aim not tested Basket in front of headlamp (4.1.2 (b)) | 1 |
| Offside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen no pattern (4.1.2 (a)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Offside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Front Brake hose leaking (1.1.12 (c)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Rear Brake fluid not visible (1.1.10 (d) (iii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Central Front Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar GLUED DURING TEST (2.2.1 (d) (ii)) | 1 |
| Rear Brake effort inadequate at a wheel ADJUSTED DURING TEST (1.2.1 (a) (i)) | 1 |
| Rear Rear reflector missing FITTED DURING TEST (4.8.2 (a) (ii)) | 1 |
| Front Shock absorber has negligible damping effect front suspension siezed. (5.3.2 (b)) | 1 |
| Front Brake cylinder damaged (1.1.16 (a) (i)) | 1 |
| Front Brake cylinder leaking (1.1.16 (b) (i)) | 1 |
| Front Brake hose excessively damaged (1.1.12 (b) (ii)) | 1 |
| Central Front Horn not working (7.7 (a)) | 1 |
| Brake master cylinder leaking SIGHT GLASS CRACKED AND LEAKING FLUID (1.1.10 (b) (ii)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling Rear of bike misaligned (2.4 (a)) | 1 |
| Front Lower Exhaust has a major leak of exhaust gases From manifold (6.1.2 (a)) | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Nearside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Brake fluid reservoir fluid not visible glass broken leaking (1.1.10 (d) (iii)) | 1 |
| Offside Front Brake fluid reservoir fluid not visible glass broken leaking (1.1.10 (d) (iii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Front Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| All direction indicators light intensity significantly reduced (4.4.3 (a)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Exhaust silencer insecure Mounting bolts missing. (8.1.1 (b) (i)) | 1 |
| Stop lamp not working Front switch. (4.3.1 (a) (ii)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Rear Brake cylinder damaged (1.1.16 (a) (i)) | 1 |
| Offside Front Brake lever insecure bolt loose (1.1.2 (e) (i)) | 1 |
| Nearside Front Indicator switch inoperative switch brocken replaced (4.4.2 (a) (ii)) | 1 |
| Throttle operating incorrectly Throttle housing damaged (6.2.7 (a) (i)) | 1 |
| Front Brake hose excessively damaged Split/leaking (1.1.12 (b) (ii)) | 1 |
| Headlamp light intensity severely reduced Main beam (4.1.4 (a)) | 1 |
| Headlamp aim unable to be tested reflector non reflective (4.1.2 (b)) | 1 |
| Nearside Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Offside Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Steering linkage component insecure freeplay between handlebars and wheel with wheel held in a straight ahead position (2.1.3 (a) (i)) | 1 |
| Nearside 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 |
| Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Front Brake cylinder has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 1 |
| Offside Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Rear Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Central Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Central Lower Motorcycle structure has a fracture which is likely to adversely affect braking or steering main stand damaged and loose (6.1.1 (a) (ii)) | 1 |
| Central Rear Fuel hose leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Nearside Front Brake lever has insufficient reserve travel Brake Lever back to the handlebars (1.1.2 (a)) | 1 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front Headlamp aim unable to be tested Headlamp not working (4.1.2 (b)) | 1 |
| Exhaust has a major leak of exhaust gases Exhaust leak at header pipe (6.1.2 (a)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake effort inadequate at a wheel and rear no reserve travel (1.2.1 (a) (i)) | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Nearside Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 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 Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Front Stop lamp not working fit a new brake switch (4.3.1 (a) (ii)) | 1 |
| Offside Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |