"The WXi is an evolution of the WX, but designed for the upcoming carpet season. Instead of the softer outdoor chassis (with the cut-outs), the harder standard chassis that the team normally uses on carpet will be included in the kit. Additionally, the optional 44.2mm front toe block will be included, as we have found throughout the season that it tends works better for carpet. The updated blades will also be included, as well as our all-new spring steel double-joint universal drive shafts. The spool outdrives remain the same as what was included in the WX, which are the heavy-duty outdrives."