I did a century last monday riding back from NAHBS in Sacramento. I rode through Davis, then up over the mountains through Napa and Sonoma, ending up in Petaluma. I followed that up the next day with a 75 mile ride through the north peninsula to San Francisco. That was all on my 1983(?) Fuji del Rey:

Fuji in front of the Dam by JPTwins, on Flickr

i got to benefit from the redwoods too:

Fuji in redwoods by JPTwins, on Flickr

and here's me at the end of 175 miles:

Arrived in SF! by JPTwins, on Flickr

You may notice the two panniers packed full of clothing and NAHBS swag and a U-lock (at least 15 lbs extra). And on top of the for at least 40 miles, I had a major headwind, which slowed me down to about 7-8mph. I'm not going to say how long this took me, because that wasn't really the point. I had a blast and a trip down memory lane (I grew up in and around this area, my father had a vineyard near Sacramento, and nothing in Boston looks anything like this!)

The route: http://ridewithgps.com/routes/988169
All the pictures: http://www.flickr.com/photos/jpbiker...7629546704651/

this was also my first full century, which surprises even myself, considering how many times I've done 70 mile rides. I'm looking forward to many more!