Now in its fifth decade of production, the Sirrus remains a stalwart of Specialized’s line-up. While originally created as an entry level racer (designed by Jim Merz no less) its name has been forged over the years as one of the best hybrid bikes - reliable yet sporty. Naturally it’s see plenty of development during this period. But perhaps none quite as radical as the latest redesign.
The new Sirrus, available as the X 5.0 and the 6.0, is built around a frameset that’s quite the departure from the previous model. Built using the brand’s FACT 9r carbon, it features the patent pending Compliance Junction, which does away with the traditional seat tube, instead leaving the Sirrus with a sizable hole between the rear seat stays (which actually start where the seat tube ends) and the bottom bracket.
