20/20 Bicycle Service Center (bike194.com) is a small independent professional bicycle repair shop, opened in 2020-2021 in Walkersville (near Frederick). Offering maintenance and repair services including assembly, flat tire repair, cleaning, tune up, overhaul and restoration, and routine parts replacement like tires, chains, cables, brake pads and fluids, spokes, bearings, etc, for all types and brands of bicycles from kids' bikes to race bikes, e-bikes, and more. We do not sell new bikes, but if you're looking for fair, honest, professional help with your bicycle needs, please give us a call. Thanks! Trek Specialized S-Works Giant Schwinn Cannondale Bianchi DeVinci Canyon Santa Cruz GT Diamondback SRAM Shimano Hayes Tektro Gravel Bike