I really liked the HydroEdge tires on my Gen II, so I emailed Michelin customer serviced and asked about the availability of tires for the Pip, and this is part of their reply: "We apologize the Michelin HydroEdge tires have been discontinued and stock is not available for retailers to order. The Michelin Defender is replacing the HydroEdge tires. The 195/65R15 Defender will launch July 2012."