| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 36 |
| Registration plate lamp issues | 26 |
| Stop lamp remains on when the brakes are released | 12 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 11 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 9 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 8 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 7 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 6 |
| Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Rear Brake excessively binding (1.2.1 (f)) | 4 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 4 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Registration plate issues | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 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 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 2 |
| Rear Brake excessively binding |1.2.1 |f|| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Front brake disc in such a condition that it is seriously weakened | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Front Brake disc contaminated (1.1.14 (b)) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Brake lever mounting insecure |3.1.2a| | 1 |
| Offside Front Direction indicator insecure insecure |1.5.3b| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies o/s brake light switch |1.3.1a| | 1 |
| Nearside Front Roller brake test indicates excessive fluctuation of brake effort Front brake disk is very warped. |3.3.A1d| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Upper Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Exhaust has a major leak of exhaust gases Hole in down pipe |6.1.2 |a|| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Central Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake caliper|s| securing bolt|s| loose front |3.2.A1j| | 1 |
| Brake lever has inadequate reserve travel front |3.1.3b| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Offside Brake lever insecure |3.1.2a| | 1 |
| Nearside Front Upper Horn not working |7.7 |a| |ii|| | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Front wheel bearings are excessively tight |2.3.5b| | 1 |
| Stop lamp not working operation from front offside lever |4.3.1 |a| |ii|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Nearside Rear Brake lever is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Offside Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Stop lamp does not illuminate immediately a brake applies Front switch |1.3.1a| | 1 |
| Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Brake effort inadequate at a wheel lever adjusted |1.2.1 |a| |i|| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Stop lamp not working Front brake control |4.3.1 |a| |ii|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Rear Brake lever pivots excessively worn |3.1.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Horn not working |1.7.3a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Throttle operating incorrectly insecure |6.2.1f| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on number plate light |1.1.3a| | 1 |
| Rear All position lamps not working |4.2.1 |a|| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Front Shock absorber has negligible damping effect fork seal |5.3.2 |b|| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension Air Filter zip tied to suspension unit |2.4.A.3a| | 1 |
| Central Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Decelerometer brake test indicates a sticking brake |3.3.E1d| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Brake disc|s| insecure securing bolt missing |3.2.A1g| | 1 |
| Front Brake lever has inadequate reserve travel spongey |3.1.3b| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Brake performance not tested |1.2.1 |g|| | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Stop lamp not working front switch |4.3.1 |a| |ii|| | 1 |
| Brake component modification adversely affecting braking performance n/s lever excess play/loose |1.1.21 |d| |ii|| | 1 |
| Brake disc contaminated |1.1.14 |b|| | 1 |
| Rear Brake lever insecure lock nut issing |3.1.2a| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Brake lever not releasing correctly and functionality of brakes affected Rear brake remains on when lever is released. (1.1.2 (b) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake lever pivots excessively worn (3.1.3a) | 1 |
| Rear Brake lever has inadequate reserve travel (3.1.3b) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle housing loose on handlebars (6.2.7 (a) (ii)) | 1 |
| Rear Brake cable has restricted free movement (1.1.15 (e)) | 1 |
| Front Motorcycle structure is so deformed it is likely to adversely affect braking or steering (6.1.1 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Rear Brake lever pivot excessively worn (1.1.1 (b)) | 1 |
| Front Brake hose excessively damaged (1.1.12 (b) (ii)) | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Fuel cap ineffective unable to excess (6.1.3 (b) (i)) | 1 |
| Brake hose damaged | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Brake lever has insufficient reserve travel Rear Brake lever (1.1.2 (a)) | 1 |
| Brake lever insecure Rear brake (1.1.2 (e) (i)) | 1 |
| Brake effort inadequate at a wheel Rear brake lever (1.2.1 (a) (i)) | 1 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play Scooter presented with fault. rectified prior to test (2.2.2 (f) (i)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Stop lamp not working not operating from rear brake lever (4.3.1 (a) (ii)) | 1 |
| Position lamp not working front position light not working (4.2.1 (a)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak front n/s fork seal leaking (5.3.2 (b)) | 1 |
| Nearside Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Rear Stop lamp not working lever (4.3.1 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Stop lamp not working rear brake light switch (4.3.1 (a) (ii)) | 1 |
| All direction indicators not working not flashing (4.4.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal leaking (5.3.2 (b)) | 1 |
| Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls brake light does not work on front brake lever (4.3.2 (a) (iii)) | 1 |
| Stop lamp not working front control (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp likely to become detached (4.3.1 (c) (ii)) | 1 |
| Throttle operating incorrectly INSECURE SWITCH HOUSING (6.2.7 (a) (i)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Rear Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Doesn???t work on rear brake (4.3.2 (a) (iii)) | 1 |
| Front Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Central Position lamp showing red light to the front (4.2.3 (a) (ii)) | 1 |
| Offside Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Brake lever pivot excessively tight (1.1.1 (a)) | 1 |
| Rear Brake cable guide defective and affecting operation (1.1.15 (d)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Front Position lamp showing red light to the front (4.2.3 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Wheel more than one fixing loose (5.2.1 (a) (ii)) | 1 |
| Rear Lower Motorcycle structure modified such that structural rigidity is significantly reduced centre stand damaged, removed as not secured. (6.1.1 (d) (i)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |