Profile Design 1ZeroFive Road Handlebar. The Profile Design 1ZeroFive bar represents a quantum leap forward in the fit and performance of road handlebars. The 1ZeroFive is one of three handlebars in Profile Design's DRiVe series, which conforms to rider morphology rather than forcing riders to adapt to the bar. The series features progressively sized bars designed around a cyclist's most powerful hand positions. The 1ZeroFive handlebar features the most compact design of the DRiVe series. It's best suited for smaller riders, or riders preferring a small variance between the hoods and drops positions.