A lot of people don't have a lift to store their bike on and it really isn't a big deal. The important thing to do is have your tires inflated to their maximum recommended pressures if you can't get the weight of the bike off of the tires. If the bike is not going to be moved for a while, this will help prevent a flat spot from forming over extended storage durations. With 3 bikes, and only one lift, 2 of my bikes sit on their tires. If it starts bugging me too much, I'll roll them one way or another to get a different contact point to the floor once in a while.
As far as the foam goes....I don't know how good foam would work. The common thing a lot of people use is wood because it is a better barrier between the tire and the floor. The theory behind doing this is because a concrete floor usually runs several degrees colder than the air temp in the garage. The contact point of the tire will be colder than the rest of the tire, and it can lead to a flat spot and, or, cracking of the tire...or so they say. If you have a dirt floor, it's even more important to use something at the contact point of the tire because the moisture alone is enough to cause havoc with the rubber over a priod of time.
On the other hand, I have some friends that don't bother with any of it because they either don't care, or are just too lazy to bother with it...LOL..I guess it's another case of doing what you're comfortable with.
Hope this helps, Tom
BTW... While I'm already posting, I'm gonna rant about something. I know a lot of you will be reading this..... Why is it hardly anyone fills out any info in thier profile ?? WTF ?? What are you afraid of ? At least put down the city you're in or what you do for a living......and don't hide behind "anonymous" either. I can see not putting a phone number up for everyone ( I wouldn't call you anyway) but I like to know SOMETHING about who I'm talking to, don't you ? O.K....... I guess I'm done for now. I'm getting thirsty anyway.


Owning a bike doesn't make you a biker.