Riding a bike outdoors is difficult, which is why children require training wheels and adults don't ride bikes outdoors. Stay in and cycle with this Groupon.
- $9 for one cycling class (a $18 value)
An indoor-cycling studio, Breakaway Ryder uses stationary RealRyder bicycles, which tilt and lean in an effort to provide a full-body workout. Exercisers hop off of the polished, wooden studio-floor and on to one of several stationary bikes, where their legs furiously pump in group classes. Certified instructors lead them in cross-training sessions, orchestrating tilts and turns that exercise the core as well as the lower body.