Skip public transportation and get around the city with ease and style on the singlespeed Trek District ($930). The District is Trek’s first production bike that replaces the regular bike chain with a Gates carbon belt drive systemwhich is rust-proof, low maintenance, nearly silent and shaves 280 grams off the weight of the bike. It also features the company’s lightweight Alpha Black Aluminum frame with Bontrager fork, stem, seatpost, saddle, crank and tires.