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  • Fits: All Harley-Davidson 1200 cubic capacity Sportster engines 2004-2013; Buell B12R Firebolt 2004-2009, XB12S Lightening 2004-2009
  • 73 cubic inch (1200 cubic capacity) kit includes 12:1 compression ratio domed, race only pistons, rings, circlips, chrome piston pins
  • Each Wiseco piston is designed with the proper installed clearance to produce the most power, least wear, and best seal at running temperature, for each application
  • Dedicated forgings are used for superior strength to weight ratio utilizing aerospace alloy with a dome designed for improved flame travel and detailed skirt shape and profiles for stability and smooth operation in the cylinder bore