yes,,,, all brake fluid is synthetic. EXCEPT Dot 5 which you CANNOT mix only because it is silicone based.
I have had bikes with disk and regular brake pads. Disk brakes dont squeak like regular brake pads and stop you much shorter. This is why disk brakes are more expensive.
Any dot 3 is fine for all cars. the important thing to remember is not to mix synthetic with regular. Just don't get the synthetic stuff by mistake, or you'll have to bleed the brakes.
Yes, bleeding the brakes removes air bubbles that might be left in the system, especially in the brake lines!If not done every time the brake system is worked on the brakes will be unreliable and unsafe!
Brakes are bled to remove air bubbles from the brake pipes. Air bubbles in the pipes will make the brakes feel spongy and less efficient.
Could be a few causes of that symptom, but most likely air in the brake lines or moisture in the brake fluid. Start by replacing the brake fluid in the reservoir and bleeding the brakes.
Check you brake fluid and lines. It may be as simple as bleeding your brakes.
Try bleeding your brakes. If there is air in the system it can give a spongy feeling to your brake pedal and require you to pump your brakes and/or put your brake pedal to the floor.
Bleed the master cylinder.& then rebleed the system.
try bleeding the brakes or checking the fluid
Yes, the brake fluid reservoir should never be let to go empty during the bleeding process.
Open brake fluid reservoir for the brakes - make sure it is full of brake fluid - put lid back on reservoir then pump the brakes then hold the brakes on - have someone open the bleed screw on the brakes and let the air and oil out and close it again quickly and repeat until the air bubbles stop in the brake fluid, also checking to make sure you do not run out of brake fluid before you finish bleeding the brakes.
I would say cobra brake parts if that is what it came with.