KB Performance Piston Kit - KB425C.030 For Harley Motorcycles 1999-2006 Brand_Barnett All components feature billet aluminum

All components feature billet aluminum construction

125 X 4RSPH &137 X 4B

Easy-to-install fork springs that do not require the removal of forks (on most models)

Vulcan 900 & 2000 models

2014 Harley-Davidson CVO Breakout FXSBSE 2014-2015 Harley-Davidson CVO Softail Deluxe FLSTNSE 2016-2017 Harley-Davidson Breakout FXSB 2016-2017 Harley-Davidson Softail Deluxe FLSTN 2016-2017 Harley-Davidson Softail Fat Boy FLSTF 2016-2017 Harley-Davidson Softail Fat Boy Lo FLSTFB 2016-2017 Harley-Davidson Softail Fat Boy S FLSTFBS 2016-2017 Harley-Davidson Softail Heritage Classic FLSTC 2016-2017 Harley-Davidson Softail Slim FLS 2016-2017 Harley-Davidson Softail Slim S FLSS

KB Performance Piston Kit - KB425C.030 For Harley Motorcycles 1999-2006 Brand_Barnett All components feature billet aluminumFeatures Manufactured from high strength, T 5 heat treated, 390 hypereutectic aluminum alloy Allows a tighter fit and longer piston and ring life Diamond machined pistons are held to plus or minus one gram weight and less than one half thousandth inch (. 0005") tolerances from piston to piston Each kit contains two pistons, pins, spiral lock pin clips and Hastings moly rings Replacement piston rings sold separately KB pistons can be installed tighter