My CB antenna is a 1/4 wave whip spring mounted on the back of my rack. Most don't want an antenna that big. My second choice would be the Wilson Flex fiberglass antenna, smaller than a 1/4 wave whip, longer than a firestick but better antenna than a firestick. Then there is the firestick, good all purpose antenna for CB. Better than the base loaded whip antenna, it has better gain. Problem with the firestick is that it doesn't flex like the Wilson and if you go off road, you will want an antenna that has good flex. My 1/4 wave whip has good flex and it operates with even better flex because of the spring mount.
If you use a firestick, the feed line length will be approximately 18 to 19 feet. Don't cut it. You'll have to loop it somewhere because the length of the firestick feed-line functions as the matching system to keep the SWR at the transmitter feed point low. I installed the full length of 18 to 19 feet so that if I decide to run a firestick, I'll be able to without having to adjust the feed line length. A 1/4 wave whip can have any length feed line. The Wilson flex should also be able to use any length feed-line.
Besides the CB, I also travel with Ham. I use the spare tire mounted antenna bases for my two ham antennas. Those are by Arizona Rocky Road. I use an ARR radio mount bar and have two radios mounted up high on it as pictured on their web site.
Participate in life....Keep movin'....Go there....JK'n it.........Do it! Jeep #1: Red Rock 08 JK Rubicon 4dr, 6 sp manual, Stock Mud Tires, MyGIG Upgrade, Hard Top, after sale BestTop SunRider Soft Top, Congo Cage Rack, Mopar slush mats Jeep #2 Black 08 JK Rubicon 2dr, 6 sp manual, both tops, some chrome...uggg (my wife's jeep) Jeep #3 White 92 YJ (my son's jeep) A great quote from a good friend: "All hail click clack and master jk'n." Click and clack are my idols!