Before wintertime hibernation, bicycles forage and fill their inner tubes with enough sustenance to feed training-wheeled cubs come spring, a noble act that often leads to serious exhaustion. Prepare weathered velocipedes for peak cycling season with today’s Groupon: for $30, you get a Ride Ready bike tune-up (a $65 value) at Endurance Sports and Rec in Franklin. Up to three Groupons may be purchased per person.

Endurance Sports and Rec focuses on providing serious athletes and busy fitness seekers with top-notch diagnostic services and products. To that end, each Ride Ready tune-up includes a brake adjustment, derailleur adjustment, afterburner check, cable lubing, bearing-system adjustment, windshield-wiper refill, and wheel truing that straightens rims to within .05 mm precision. In the process, customers will also be able to non-literally pick the brains of Endurance Sports' friendly and experienced staff of gear gurus as they tighten and lubricate your pavement-glider, leaving it free of creaky noises, barnacles, and explosive devices planted by angry squirrels.

No one at a department store can tell if a bike frame is bent, the brakes are loose, and the front tire has been stabbed repeatedly with a 16-inch serrated knife. The bike-savvy staff at Endurance Sports and Rec can, and they'll make sure that each bicycle leaves in sturdy and smooth-rolling form so that its rider is able to outrun the summer's neighborhood ice-cream trucks and chupacabras.