I never realized that white wall tires were gum wall tires, that's not the definition I knew about the meaning of gum wall.

These are gum wall tires, and a nice one but expensive; see: http://www.biketiresdirect.com/produ...vo-sc-clincher also see a more reasonable priced tire: http://www.biketiresdirect.com/produ...cher-road-tire But neither of those come in a 25 width. The closest I could fine was a Grand Bois Tires called the Col de la Madeleine, but it's a 26; see: http://www.compasscycle.com/Tires.html Continental has a new tire out called the Grand Prix Classic but stock is hard to find; see: http://www.upgradecycle.com/continen...x-classic.html Challenge makes a couple but they have only 23's and 27's and cost over $60. You can get some cheap heavy Cheng Shin gumwall tires, but did I mentioned their cheap and heavy?

Getting exactly a 25 for a low cost is going to be difficult. You might have to settle for a 23; unless a 28 will fit which I doubt, but Ruffy Tuffy is another gum wall tire but it cost about $45 and is a 28.

I don't believe Panaracer is making the Gumwall Pasela in a 25 anymore.