No prob. When I first got my road bike after riding a hybrid, it took me a while to get used to it - the brakes weren't where I was used to having them, the shifting was completely different, and the position felt very odd and insecure to me at first.

I was recounting today on our ride on the Alameda Creek trail about how I was so unsteady when I first started riding a road bike that one time I was riding along that trail and got too close to the edge of the pavement, froze up, and rolled down the side of the levee, and there was nothing I could do about it besides let out an ear-piercing shreek. Luckily I didn't run into anything and I managed to slow down before crashing into a fence. Back then I was terrified and sooo embarassed, but it's pretty funny now.

Hopefully you're not as klutzy as I am, but still, it might take you a bit to get used to handling the bike, and in a large ride like the Wine Country you'll need good control.

You'll get the hang of it, I promise. Probably quicker than I did.