+1 on saddle fit. Have you read the saddle fit threads here?

First thing to try is riding your road bike in the same shorts that you wear comfortably on the hybrid. There's no law that says you need to wear cycling shorts on a road bike. They're just more comfortable for most people. But if you have the same issues in the same shorts on both bikes, it's not the shorts - or at least not only the shorts.

That said, I'm in the camp of much preferring a thinner chamois (also a firmer saddle). Anything squishy, whether shorts or saddle, is going to move around and chafe.


Lastly, I think a lot of people buy their first pair of cycling shorts too large. Cycling shorts should fit like pantyhose - they shouldn't bind or constrict, but there should be no bagginess or poofiness anywhere.