| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 25 |
| Rear reflector on motorcycle missing |1.4.1| | 17 |
| Registration plate issues | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Horn not working |1.7.3a| | 6 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Offside Handlebar deformed |2.1.1b| | 3 |
| Nearside Rear Footrest missing |6.2.1a| | 3 |
| Offside Rear Footrest missing |6.2.1a| | 3 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Headlamp aim beam image kick up to the offside (1.6) | 2 |
| Rear reflector on motorcycle missing (1.4.1) | 2 |
| Horn not working (1.7.3a) | 2 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Front position lamp missing |1.1.1a| | 2 |
| 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| | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear Brake component is excessively corroded |3.1.5| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Offside Front Brake hose leaking (1.1.12 (c)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Fuel tank insecure |6.1.3 |a| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Throttle operating incorrectly throttle sticking, more when bars are turned (6.2.1f) | 1 |
| Direction indicators flashing more than 120 times per minute all four led indicators flashing too fast (1.5.1c) | 1 |
| Fuel system component leaking excessively or a risk of fire fuel tap (6.1.3 (b) (ii)) | 1 |
| Offside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Position lamp not working main beam |4.2.1 |a|| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Brake fluid contaminated |1.8 |a|| | 1 |
| Rear Brake fluid contaminated |1.8 |a|| | 1 |
| Nearside Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front An item not tested |Manual| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Nearside Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Sidecar direction indicator not working |1.5.1c| | 1 |
| Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Outer All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake hose damaged | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp not working Front stop switch (4.3.1 (a) (ii)) | 1 |
| Rear Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Stop lamp not working Rear brake pedal (4.3.1 (a) (ii)) | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Position lamp not working position light not working (4.2.1 (a)) | 1 |
| Front Stop lamp not working Brake light only working intermittently when operated by front brake (4.3.1 (a) (ii)) | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake component inadequately mounted split pin missing from pedal pin (1.1.21 (c)) | 1 |
| Brake component insecure rear brake arm nuts loose (1.1.21 (c)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies control |1.3.1a| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front Upper Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Front Wheel has an excessively distorted bead rim. (4.2.2) | 1 |
| Nearside Handlebar handgrip not secure to handlebars. (2.1.1c) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars (2.1.2b) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.5.1) | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. (2.1.1c) | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking (6.1.1c) | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear 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 |
| Nearside Position lamp switch insecure |1.1.4b| | 1 |
| Offside Position lamp switch insecure |1.1.4b| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Offside Exhaust mounting missing |7.1.1c| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Brake disc contaminated (1.1.14 (b)) | 1 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear brake binding | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Wheel spindle loose |5.2.1 |c| |i|| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Headlamp aim beam image kick up to the offside deflector blank fitted |1.6| | 1 |
| Nearside Front Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Offside Front Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Front Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Rear Brake hose excessively stretched (1.1.12 (b) (ii)) | 1 |
| Rear Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Headlamp aim projected beam image obviously incorrect Kick Up To Offside (4.1.2 (c)) | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Nearside 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 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Brake pedal is so short and the brake cannot be readily applied |3.1.3c| | 1 |