S&S CYCLE 0904-0054 920-0145 Big Bore Kit Koso North America If your seat is a

If your seat is a reduced-reach

2007 Harley-Davidson Softail Standard FXST 1987-2017 Harley-Davidson Softail Heritage Classic FLSTC 1990-2017 Harley-Davidson Softail Fat Boy FLSTF 1993 Harley-Davidson Softail Heritage Nostalgia FLSTN 1994-1996 Harley-Davidson Softail Heritage Special FLSTN 1999-2009 Harley-Davidson Softail Night Train FXSTB 2000-2007 Harley-Davidson Softail Deuce FXSTD 2001-2006 Harley-Davidson Softail Deuce FXSTDI 2001-2006 Harley-Davidson Softail Heritage Classic FLSTCI 2001-2006 Harley-Davidson Softail Night Train FXSTBI 2001-2006 Harley-Davidson Softail Standard FXSTI 2002-2006 Harley-Davidson Softail Fat Boy FLSTFI 2005 Harley-Davidson 15th Anniversary Fat Boy FLSTF 2005-2017 Harley-Davidson Softail Deluxe FLSTN 2005-2006 Harley-Davidson Softail Deluxe FLSTNI 2006 Harley-Davidson Softail Heritage FLSTI 2010-2016 Harley-Davidson Softail Fat Boy Lo FLSTFB 2011-2013 Harley-Davidson Blackline FXS 2013-2017 Harley-Davidson Breakout FXSB 2016-2017 Harley-Davidson Softail Fat Boy S FLSTFBS

Provide maximum service with chromed valve stems

284" Exhaust Open 58

to ensure a consistent finish and minimize body work

S&S CYCLE 0904-0054 920-0145 Big Bore Kit Koso North America If your seat is aFeatures Complete kits include cylinder sleeves, pistons and head gasket 750cc kit increase bore and stroke to 83. 5mm x 67. 8mm (stock is 78 mm x 67. 8 mm) 865cc Increases bore and stroke to 90 mm x 67. 8 mm (stock is 78 mm x 67. 8 mm) Both kits increase compression ration to 11. 0: 1 (stock is 9. 5: 1) Made in the U. S. A. FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY