| Most common failures | No# failures |
|---|
| Drive chain excessively loose (6.1.7 (c) (i)) | 15 |
| Rear Brake excessively binding (1.2.1 (f)) | 14 |
| Headlamp aim out of alignment | 11 |
| Front Brake excessively binding (1.2.1 (f)) | 11 |
| Rear reflector missing (4.8.2 (a) (ii)) | 10 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 10 |
| Registration plate lamp issues | 8 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 8 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 5 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 5 |
| Registration plate issues | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 4 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 4 |
| Horn not working (7.7 (a)) | 4 |
| Rear Suspension component modified so the suspension is inoperative (5.3.3 (c) (ii)) | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 3 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 3 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 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)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Nearside Rear Lower Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Front Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Offside Rear Footrest missing (6.2.12 (a)) | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Exhaust system insecure (6.1.2 (a)) | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Stop lamp not working off foot control (4.3.1 (a) (ii)) | 1 |
| Drive chain horseshoe locking device likely to become detached Missing (6.1.7 (j) (ii)) | 1 |
| Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect suspension seized solid (5.3.2 (b)) | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Offside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Brake pedal insecure (1.1.2 (e) (i)) | 1 |
| Front Brake excessively binding Front brake binding excessively, repair immediately. (1.2.1 (f)) | 1 |
| Front Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Decelerometer brake test Neither brake control achieves an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect Rear suspension linkage or shock is seized. No damping effect (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 |
| Offside Front Handlebar deformed to the extent that steering is affected R/H handle bar bent (2.2.1 (c) (ii)) | 1 |
| Offside Front Brake lever is so short that the brake cannot be readily applied Front brake lever end is missing (1.1.2 (d)) | 1 |
| Central Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure Both front and rear wheel split pins missing (6.1.1 (b) (i)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Front Throttle operating incorrectly Throttle sticking on lh and rh lock (6.2.7 (a) (i)) | 1 |
| Brake lever has insufficient reserve travel lack of fluid in master cylinder (1.1.2 (a)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Nearside Front Handlebar deformed to the extent that steering is affected Near side handle bar bent (2.2.1 (c) (ii)) | 1 |
| Rear Footrest missing Both rear footrests missing pillion seat fitted (6.2.12 (a)) | 1 |
| Offside Handlebar deformed to the extent that steering is affected Bent (2.2.1 (c) (ii)) | 1 |
| Brake fluid not visible (1.1.10 (d) (iii)) | 1 |
| Rear Shock absorber has negligible damping effect Bushes seized (5.3.2 (b)) | 1 |
| Brake excessively binding Rear brake (1.2.1 (f)) | 1 |
| Brake excessively binding Front brake (1.2.1 (f)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Brake caliper inadequately mounted Rear Caliper mounting bolt missing (1.1.16 (c) (i)) | 1 |
| Shock absorber has a serious fluid leak Rear shock (5.3.2 (b)) | 1 |
| Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Brake caliper excessively weakened by corrosion Inner pistons corroded (1.1.16 (d) (i)) | 1 |
| Brake disc significantly and obviously worn Rear brake disc (1.1.14 (a) (i)) | 1 |
| Headlamp incorrect colour headlight lens worn & damaged (4.1.4 (a)) | 1 |
| Rear Stop lamp not working brake (4.3.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Rear Shock absorber has negligible damping effect no dampening effect (5.3.2 (b)) | 1 |
| Stop lamp not working front brake switch (4.3.1 (a) (ii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Shock absorber has an excessively worn bush Seized. (5.3.2 (c)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Nearside Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Offside Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Nearside Front Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Central Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock INDICATOR WIRING FOULING (2.1.4 (a)) | 1 |
| All direction indicators not working INTERMITTENT (4.4.1 (a) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure front disc (6.1.1 (b) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure rear sprocket (6.1.1 (b) (i)) | 1 |
| Nearside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Front Direction indicator incorrect colour bulb was showing only white light (4.4.3 (a)) | 1 |
| Front Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Footrest missing both (6.2.12 (a)) | 1 |
| Front Brake cylinder operating mechanism has excessive travel (1.1.16 (e) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Rear Brake light switch not operational (spring missing) (4.3.2 (a) (iii)) | 1 |
| Rear reflector missing PRS Replaced (4.8.2 (a) (ii)) | 1 |
| Brake performance unable to be tested Due to front brake binding (1.2.1 (g)) | 1 |
| Offside Front Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Stop lamp not working foot brake (4.3.1 (a) (ii)) | 1 |
| Headlamp insecure Head light Bracket Bolt and Nut Loose. (4.1.1 (c)) | 1 |
| Rear Exhaust system insecure Heat Shield (6.1.2 (a)) | 1 |
| Brake hose damaged | 1 |
| Front Brake hose excessively stretched Brake Hose Wrong Way Around Fork (1.1.12 (b) (ii)) | 1 |
| Front Steering headbearing has excessive wear or free play Movement in top and bottom Yoke (2.2.2 (f) (i)) | 1 |
| Front Steering headbearing excessively stiff or notchy Notchy In Places (2.2.2 (f) (i)) | 1 |
| Drive chain excessively loose and no lubrication (6.1.7 (c) (i)) | 1 |
| Rear Shock absorber has negligible damping effect linkage seized (5.3.2 (b)) | 1 |
| Rear Shock absorber has negligible damping effect possible linkage seized (5.3.2 (b)) | 1 |
| Rear Wheel spindle locking device missing split pin (5.2.1 (d)) | 1 |
| Nearside Front Lower Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Upper Brake fluid contaminated (1.8 (a)) | 1 |
| Nearside Rear Lower Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Front Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect Rear Suspension Seized (5.3.2 (b)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen Headlamp lens opaque (4.1.2 (a)) | 1 |
| Brake performance unable to be tested (1.2.1 (g)) | 1 |
| Rear Shock absorber has negligible damping effect suspension seized (5.3.2 (b)) | 1 |
| Front Brake master cylinder insecure (1.1.10 (c)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Suspension rod pin or bush likely to become detached suspension LINKAGES SEIZED UP NO MOVEMENT UP AND DOWN (5.3.4 (a) (ii)) | 1 |
| Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Riders seat with a defective supporting structure (6.2.5 (a) (i)) | 1 |
| Rear Suspension component mounting modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Offside Exhaust system insecure (6.1.2 (a)) | 1 |
| Nearside Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Offside 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)) | 1 |
| Rear Shock absorber has negligible damping effect seized (5.3.2 (b)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Upper Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Offside Front Wheel spindle locking device missing Split pin missing (5.2.1 (d)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Direction indicator not working both left on only (4.4.1 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn where linkage is attached to frame (5.3.4 (a) (i)) | 1 |
| Central Rear Lower Wheel spindle locking device missing split pin missing (5.2.1 (d)) | 1 |
| Stop lamp not working Rear control (4.3.1 (a) (ii)) | 1 |
| Offside Footrest insecure (6.2.12 (a)) | 1 |
| Exhaust has a major leak of exhaust gases broken pipe (6.1.2 (a)) | 1 |