Cycling is the perfect hacker sport:

* You can go out riding by yourself, or with groups.

* You can geek out about the tech involved if you want.

* It gets you outdoors in a context very different from sitting on your ass in front of a computer. Great for clearing the head.

The biggest drawback is that it's tough to find the time for a good ride (at least 2 hours), whereas something like running takes less time.

If anyone ever makes it over to the Padova area with their bike, I'd be happy to take you out on a ride and show you the area. The Colli Euganei and Colli Berici are both pleasant and attractive areas to ride.