| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 47 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 22 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 16 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 15 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 11 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 10 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 9 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 8 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 7 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Registration plate lamp issues | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 5 |
| Horn not working |1.7.3a| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 5 |
| Horn not working (7.7 (a) (ii)) | 5 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 4 |
| Registration plate issues | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 3 |
| Rear Brake excessively binding |1.2.1 |f|| | 3 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Horn not working (7.7 (a)) | 3 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Brake lagging in operation |1.2.1 |d|| | 2 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Floor brake test indicates a sticking brake On rear brake |3.3.C2c| | 1 |
| Brake pedal cannot be released smoothly Sticking |3.1.3d| | 1 |
| Inner Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Valve stem seriously damaged Age cracks (5.2.3 (j)) | 1 |
| Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil fork seal |2.3.3| | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Nearside Front Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease contaminated with fork oil |3.2.A1k| | 1 |
| Rear Shock absorber has a serious fluid leak x2 |5.3.2 |b|| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Nearside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Nearside Exhaust mounting does not fully support the exhaust system exhaust muffler |7.1.1.c| | 1 |
| Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Inner Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake component is fractured Caliper |3.1.5| | 1 |
| Offside Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil leaking oil onto right brake disc |2.3.3| | 1 |
| Central Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Brake lever excessively corroded |3.2.A1c| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Central Lower Motorcycle structure cracked suspension dog bone |6.1.1a| | 1 |
| Rear Brake master cylinder defective but brake still operating |1.1.10 |b| |i|| | 1 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Motorcycle structure cracked |6.1.1a| | 1 |
| Brake lever attachment screws loose |3.1.2b| | 1 |
| Rear Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Brake fluid not visible |1.1.10 |d| |iii|| | 1 |
| Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak Front N/S fork oil seal leaking |5.3.2 |b|| | 1 |
| Front Horn control defective |1.7.2a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Headlamp aim not tested LED bulb fitted (4.1.2 (b)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Offside Front Footrest missing (6.2.12 (a)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Offside Front Upper Vehicle identification number not legible |0.2 |b|| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Brake component is excessively corroded |3.1.5| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Brake caliper cracked rear mounting |1.1.16 |a| |i|| | 1 |
| Nearside Rear Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Brake pedal not releasing correctly and functionality of brakes affected sticking |1.1.2 |b| |ii|| | 1 |
| Rear Brake pedal pivot has excessive free play (1.1.1 (b)) | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Front Front suspension assembly component excessively bent |2.3.1| | 1 |
| Rear Suspension component pin or bush excessively worn |Shock Absorber Lower Bush| |5.3.4 |a| |i|| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Brake caliper insecure |1.1.16 |c| |i|| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Nearside Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Rear Brake component inadequately mounted (1.1.21 (c)) | 1 |