The RBX Interchangeable Hub seats to the propeller hub cavity in order to eliminate hub chatter and vibration while preventing spinning within the propeller. It features a one-piece rubber construction with anodized aluminum splines - no plastics to deteriorate. Hubs offer 10° deflection to reduce banging when shifting gears or hitting a submerged object. All RBX hubs are reusable if the propeller is damaged. Designed for use with the following: Honda BFP 60 (2010 and Newer) BF 75 and BF 90 (1999 and Newer) BF 115 1998-10, BF 130 (1998-04) 15 Tooth Spline with 4-1/4" Gearcase, BF 115D (2011 and Newer), BF 135-250 (2002 and Newer) 15 Tooth Spline with 4-3/4" Gearcase.