Iwan Wirth and David Zwirner are splitting up after nine years of running their secondary-market venture, Zwirner & Wirth, together. But it’s an amicable parting. Zwirner will be moving the enterprise, now simply called Zwirner, in November to a new Chelsea location designed by Shigeru Ban. Meanwhile, the most recent outpost of the Zurich and London gallery Hauser & Wirth is taking over the former Zwirner & Wirth and expanding to four floors of exhibition space set to open on September 23. The debut exhibition is an homage to the history of the building, which once housed the Martha Jackson Gallery, a pioneer in showcasing postwar American art. YARD, which the late Allan Kaprow originally created in 1961 by heaping rubber tires and tar-paper-wrapped forms in the Jackson gallery's backyard, will be reinvented inside the new space by the artist William Pope L. The show, on view through December 31, also includes riffs on YARD by Sharon Hayes and Josiah McElheny at public sites in Queens and downtown Manhattan, respectively. Each of the current variations on the theme will "rearrange the tires" — Kaprow’s own instructions — but one thing remains the same: Viewers can climb on the art. 

"Reinventing the Wheel" originally appeared in the September 2009 issue of Art+Auction. For a complete list of articles from this issue available on ARTINFO, see Art+Auction's September 2009 Table of Contents.