Any of the following can be registered as a commercial vehicle, and all are available without air brakes. (Yes, even the airplanes)
Non-ABS has drum, ABS equipped Saturns have disc's.
Autonet Insurance specializes in the commercial automobile market. This includes fleet vehicle insurance, commercial vehicle insurance and commercial van insurance.
A commercial vehicle such as a truck or limo needs to have a very high coverage cost because they are used for commercial purposes. The most common insurance for them is comprehensive insurance.
Whether a vehicle has air or hydraulic brakes has no impact on what kind of license is required to operate it in the US.
A small single axle trailer does not need brakes but be aware that your vehicle will have to stop the vehicle plus the trailer, so allow more stopping distance. A double axle trailer needs trailer brakes if you are carrying a heavy load of any kind at all.
My 98 LS has 4 wheel disc brakes. I would not be surprised though if some have drum type brakes in the back - maybe dependent on which motor the vehicle has.
What kind of vehicle? Does Door ajar light stay on also?
It offers vehicle distribution, dealership, spare parts availability, commercial equipment and other expanded vehicle services.
Depends on how far you want to take it, and what kind of bike it is. The most common type of light weight bike is probably a road bike, and they are generally equipped with caliper rim brakes, with single-pivot being the lightest design available. But there are also light weight MTBs, and they generally run disc brakes. A MTB for flat terrain can still have straight-pull brakes(v-brakes), which is a kind of rim brake too. They can still be lighter than disc brakes although braking isn't quite as good.
You need a Class C CDL--you can't put that kind of endorsement on a regular drivers license. These days there's no such thing as an air brake endorsement; there is a "no air brakes" limitation if you come to your road test in a truck that doesn't have them.
A CDL is a commercial drivers license and is only necessary if the vehicle to be driven meets one or more of these criteria, used to transport hazardous waste, any commercial vehicle with a Gross Vehicle Weight Rating of 26,001LBs or more, or that it carries 16 or more passengers(driver included).
Depends on the kind of pads/rotors you got. It's normal for some compounds to squeak .