It depends on how heavy or light you bleed and possibly what pads you use but try every 1 to 2 hours
You should inspect the pads and rotors at least twicw a year and change pads if they are worn down to 2mm.
There is no set time to change the pads. How often depends on how you drive. They may last 20,000 to 80,000. Inspect them every so often and listen for the squeal of the warning device. Replace immediately if you hear this.
How often you change your pad depends on how heavy your flow is and how often your pads fill-up. You need to change your pads at least every 4-6 hours, this is true even if they're not full because you need to change often in order to remain hygienic.
There is no set time or even mileage to change ANY brake pads. It depends entirely on the quality of pads and how you drive. -You should check them every 6 months and when they get down to 3/32 of brake material that's the time to change.
It depends on the brand of brake pad and your driving habits. Normally, you'll get somewhere between 30,000 - 50,000 miles from a set of pads.
you should change all the pads and wires together you should change all the pads and wires together
After 20000 miles
Depends on how much you bleed, there are no pads specifically for a certain age. You just have to try what suits you. During the day you can change more often so during night you might need night pads since you wont change for many hours.
ive found that its best to remove the wheels and inspect the pads before ya make your descision also its dependant on your driving style and frequency
When they wear out. Can be between 10,000 miles and 100,000 miles depending on driving habits.
When they wear out. There is really no set mileage to change pads. They wear according to how you drive, and the weight of the car. 40,000 miles in normal, but I have seen them wear out in 20,000 or even 75,000 miles. Insect them and listen for the warning device to squeal.