Although spandex shorts may not be as fashionable as designer jeans and dresses, they're much better for riding a bike or for using as a slingshot for eggs. Gain practical fashion sense with today's Groupon: for $50, you get $100 worth of cycling apparel at Tread Bikes.

Tread Bikes suits up cycling enthusiasts with a cornucopia of pedal-pushing gear and apparel, all organized in tidy racks that make for easy browsing. Select RD cleats by Pearl Izumi ($95) use direct-vent technology to cool down overheated tootsies, and the Fox Head Flux helmet ($99.95) keeps cyclers from having to cruise around town in a propeller beanie. Customers can also wrap torsos in the lightweight Carbon Ion jersey by Louis Garneau ($94.99), made from carbon-fiber fabric that assists in reducing static electricity while ushering circulation to the upper body. Tread Bikes' shop boasts a play area for children and welcomes dogs, so long as they are housebroken and aren't wearing rollerblades.