Salt City Sprints is about one thing, and one thing only: roller-racing. Roller-racing has been around for nearly a century in one form or another. In the beginning, analog systems used a series of pulleys and an enormous dial to measure a rider's distance. Today, roller-racing has gone digital. Mostly based on the OpenSprints open-source software, cyclists can now enjoy roller-racing that is customizable, portable and easy-to-use! Checkout www.opensprints.com to see some great roller-race systems.- Cal