any good sites? I need a 20" X 2.5-3" tube. Thanks.
One that jumps to mind is: www.unicycle.com
I already looked there and the closest thing I could find there was a 20"x2.15" I’ve gotten a 20X3" somewhere online bfore, but I can’t remembre the site at the moment.
I have a 19" x 3" tube at home with a screw-in-place valve.
Pm me and we can get it to you.
That 20"x2.15 comes with every uni stock I think.
I was wondering what advantage, if any, would a 20"x3 tube have over a 20"x2.15?
You really don’t need such a huge tube, I used the same 20x2.25 tube for 3.5 years until finally the valve stem broke on Sunday.
Yeah, you just need a regular 20x2.25 tube. It’ll stretch to the tire just fine.
best place to buy them is a motorcycle shop.
motorcycle tubes are much better for our uses than bicycle tubes.
15x 2.0-2.5 (or 15x 2.25-2.75) … something in that range and you probably will not have to buy a tube for several years.
Some brands do stretch differently though. I recently got a tube that wanted to stretch to be a 24" tube instead of stretching to be a fatter 20" tube. In my experience the Cheng Shin tube that I had was the best.
that company makes most small pneumatic tires and tubes in existance.
i am betting that 3/4 of the brands you can get come from thier factories.
You might want to know that motorcycle tubes suck for prehops if you do hops higher than about 80cm.It just feels way too hard and doesnt bounce much.Even if you let air out of the tyre it ends up folding all the time instead.They would be great for street/big street though
my LBS has them. Did you check there?
Every LBS should have them.
youre thinking of 20"x1.90 which is for bmx.You can still use them for uni but they dont last as long
They should all also have the 2.125 sizing. Or at least the 1.95-2.125 ones. All the ones ive gone to have the 2.125, even when im out of state visiting other LBSs. 
Americans get everything.Almost every bike shop here doesnt have them
Yeah, but none of the shops ive seen have 20x2.5 or 19x2.5.
I can order them online though at trials stores, so its not too bad.