At Tread Bike Shop, a team of cyclists and professional mechanics unite patrons with their perfect two-wheeled soulmates. Two employees are masters in the art of Body Geometry Fitting, in which they adjust handlebars and saddles to account for riders’ comfort, efficiency, and safety while maintaining their ability to outrace cheetahs escaped from the zoo. Further catering to customers’ individual needs, the staff helps to select bikes from brands such as Cannondale and Dohan and prepare them for test drives. Throughout the store, a vast inventory of accessories and apparel equips riders for any biking situation, and a repair center tunes up frames and erases evidence of collisions with car doors suddenly painted on brick walls. The shop also rents out both comfort and sports models for abbreviated excursions through the city’s streets and parks.