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 $28, you get a standard bike tune-up (a $56.44 value) at the Barrie location of The Bike Zone on Dunlop Street West. This full custom cycle shop stocks a plethora of performance parts and frames to build or modify any bicycle that the mind can conjure from feathers and wax. The Bike Zone's professional staff of cyclists also aid ailing velocipedes with custom tune-ups to keep trusty machines in tip-top, squeak-free form. The standard tune-up includes an adjustment of gears, drive-train systems, and brakes, as well as wheel alignment, basic cleaning, tire balancing, and a safety inspection.