If you change the tire w/o changing those junk neck bearings, you'll have the same problem again, only quicker as the bearing wobble gets worse. It's your $30 for an "All Balls" kit, or your $150 for new rubber. FWIW, I run 'Ride On' internal sealer/ balancer in my tires. VERY Smooth!
2003 1800C Black w/ H-K 3", PC III, Clearview w/s, Hondaline backrest, XM sat. radio, MB 12" shocks, Prog. fr. spgs., Wolo, SPyKER mod, Glen's gas cap, Paladins, Drag Specialties Popsicle pegs, K-N, blackened engine, Kury RTB, mirrors & r. boards, blue LED's, Rivco tach & risers, LeatherLyke bags, backrest bag, w/s tri-pouch, Gen. Altimax RT43, Mich. Cmdr. II, Ult. Lowrider, Showchrome grips. 12-18 VTXCafe Bike of the Month