I'm in training for my first century ride soon and suddenly it seems that rolling resistance is starting to get my attention. The Trek 460 currently has the Bontrager Select B 25mm tires. Previous to that I ran the Vredestein Ricorso (not the SE) from '04 when they were lighter and 23mm. From the first ride I could tell the Bontragers were sluggish compared to the smaller width (only 2mm difference) Ricorso. Durability is nice but not the #1 concern in this area.
The Bontragers respond well to high inflation but with a 100psi max I'm wondering when one will bulge and blow
So, without breaking my piggy bank what tire would be considered a faster tire/less rolling resistance?