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. Help spin the spokes of life with today's Groupon: for $12 you get a basic bicycle tune-up (a $25 value, HST included) at ChainLine Cycle, located on Ellis Street. The family-owned and operated full-service bike shop offers tune-up and repair service for all brands of bicycle. Headed by an experienced bicycle technician, the basic tune-up includes an emotional adjustment of worn down gears and brakes, a chain lube and safety check, and air for the tires. All bicycle work is guaranteed by ChainLine Cycle, and the value of today's Groupon can also be applied towards an upgrade to the full tune-up ($45), which also includes, suspension and bearing adjustment, wheel tension, and a wash.