Copenhagen Cyclery's talented team of bike experts will fine-tune your two-wheeled friend to ensure you coast through the city with utmost safety. This Groupon covers all labor costs, inner-tube replacements as needed, and comes with a free multi-tool, but any replacement parts must be purchased at the time of your tune-up. The complete summer spruce will commence with a drive-train check, an inspection of the bottom bracket for proper tightness and the chain for excessive wear, and an adjustment of the front and rear derailleur. Next, front and rear brakes will be investigated for pad wear and adjusted as needed. The bike's headset and handlebar will be diligently tinkered with and tightened, and wheels will be looked over to spot any unsafe imperfections. Finally, all nuts and bolts will be tightened and the bike will be cleaned and polished until it sparkles like new. As the bike is being pampered, take a stroll through Copenhagen's shop, admiring its impressive stock of beautifully crafted European bicycles and accessories.