how often is it that u can lose weights on wheels. i had a bad shake at 60 + a month and a half ago and now its back. the roads also suck here. i had them balanced. $12 a wheel and it get no cheap any where else. my tires are in very good condition. has anyone had a problems with wheels coming loose. for some strange reason i think this is my problem. the shake is more in the back like its the rear wheels and a little in the wheel. seems normal at 50 and below with no braking probs.