The easiest way to tell a bicycle's gender is that a girl bike has a diagonal crossbar, and a boy bike has a horizontal crossbar and a handlebar moustache. Service your cute or handsome cycle with today's Groupon: for $25, you get a bike tune-up at Biketopia (a $50 value), a full-service bike shop offering top-notch repairs and maintenance for mountain bikes, road bikes, and most other peddle-powered varieties. Bring your bi-wheeled baby in for a tune-up, and enjoy sparkling spokes, bolstered brakes, and bottom brackets that won't bottom out. Biketopia technicians will adjust and lubricate your drivetrain and cables, assuring a smooth ride on the highway, down the mountain, or across the neighborhood gorge. A tune-up can help lengthen your bicycle's lifespan, and it shows you're sorry for not remembering its birthday last year.

Reviews

CityVoters named Biketopia one of the top five bike shops in Knoxville, and the shop was featured in the Knoxville News Sentinel.