Hello!

Just wondering what tire width and pressure I should go with for lowest rolling resistance? I was using 20's but replaced them with 23's because I read wider tires are faster. But how much is too wide? Should I go up to 25's? Zipp says their rims are designed for optimum aero performance for 23. Any wider and negative aerodynamics start to dominate. I don't use Zipp's. Anyone have a guess on what tire width is best for Reynolds 32's?

After choosing a width...what pressure should I run them at? I'm 135 lbs right now. I was running 100psi front and rear. Should I ride lower?

Thanks!