if you put the time into learning to build wheels it pays off. a low $ set up, sun m-13 rims, sapia butted spokes from thorusa, and vittoria zaffiro tires. the sun rims will take the 25mm tire, the 28 is pushing the limit for a 13mm rim [13x2=26] but not by much and works ok. you can use your current hubs, or get another set of hubs and you have 2 wheel sets, plus no down time while building the wheels.