S&S Cycle 1.725:1 Ratio Rocker Arm Set — Fits 1984+ Harley-Davidson Big Twin

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About S&S Cycle

S&S Cycle engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full S&S Cycle lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

S&S Cycle 1.725:1 Ratio Rocker Arm Set

Optimize your engine's performance and durability with the S&S Cycle 1.725:1 Ratio Rocker Arm Set. Engineered for 1984 and later Harley-Davidson Big Twin models, this set provides a precise ratio increase, leading to improved valve lift and overall engine efficiency.

Precision Performance Upgrade:

  • Features a 1.725:1 rocker arm ratio for increased valve lift.
  • Precision-machined for smooth operation and reduced friction.
  • Constructed with high-quality materials for exceptional durability and longevity.
  • Direct replacement for stock rocker arms on 1984+ Harley-Davidson Big Twin engines.
  • Enhances camshaft performance, leading to increased horsepower and torque.
  • Ideal for both performance builds and stock engine upgrades.

Maximize Your Engine's Potential:

The rocker arm ratio plays a critical role in determining how much the valves open and for how long. By increasing the ratio to 1.725:1, this S&S Cycle set allows your camshaft to more effectively open the valves, leading to better cylinder filling and scavenging. This translates into tangible gains in power and torque across the entire RPM range. The superior construction ensures these rocker arms can withstand the increased stresses associated with higher lift and performance camshafts, providing reliable operation for miles to come. Whether you're building a custom hot rod or simply looking to get more out of your stock engine, this rocker arm set is a smart investment.

Achieve greater performance from your Big Twin. Get the S&S Cycle 1.725:1 Ratio Rocker Arm Set today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1997-2016 Harley-Davidson FLHR Road King Base
2007-2016 Harley-Davidson FLHRC Road King Classic Base
1998-2006 Harley-Davidson FLHRCI Road King Classic Base
1996-1997 Harley-Davidson FLHRI Road King Base
2000-2006 Harley-Davidson FLHRI Road King Base
2004-2007 Harley-Davidson FLHRS Road King Custom Base
1984 Harley-Davidson FLHS Electra Glide Sport Base
1987-1993 Harley-Davidson FLHS Electra Glide Sport Base
1999-2000 Harley-Davidson FLHT Electra Glide Standard Base
2003 Harley-Davidson FLHT Electra Glide Standard Base
2006-2009 Harley-Davidson FLHT Electra Glide Standard Base
1984-2005 Harley-Davidson FLHTC Electra Glide Classic Base
2007-2013 Harley-Davidson FLHTC Electra Glide Classic Base
1996-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
1989-1997 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
2007-2016 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
1995-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2009-2013 Harley-Davidson FLHTCUTG Tri Glide Ultra Classic Base
2015-2016 Harley-Davidson FLHTKL Ultra Limited Low Base
2014-2016 Harley-Davidson FLHTKSE CVO Limited Base
2006-2016 Harley-Davidson FLHX Street Glide Base
2014-2016 Harley-Davidson FLHXS Street Glide Special Base
2010-2012 Harley-Davidson FLHXSE CVO Street Glide Base
2015-2016 Harley-Davidson FLHXSE CVO Street Glide Base
2010-2011 Harley-Davidson FLHXXX Street Glide Trike Base
2012-2016 Harley-Davidson FLS Softail Slim Base
2016 Harley-Davidson FLSS Softail Slim S Base
1986-1990 Harley-Davidson FLST Heritage Softail Base
2006 Harley-Davidson FLST Heritage Softail Base
1988-2016 Harley-Davidson FLSTC Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
1990-2016 Harley-Davidson FLSTF Fat Boy Base
2010-2016 Harley-Davidson FLSTFB Fat Boy Lo Base
2016 Harley-Davidson FLSTFBS Fat Boy S Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
1994-1996 Harley-Davidson FLSTN Heritage Softail Special Base
2008-2011 Harley-Davidson FLSTSB Cross Bones Base
2010-2012 Harley-Davidson FLSTSE CVO Softail Convertible Base
1998-2013 Harley-Davidson FLTR Road Glide Base
2015-2016 Harley-Davidson FLTR Road Glide Base
1998-2006 Harley-Davidson FLTRI Road Glide Base
2011-2016 Harley-Davidson FLTRU Road Glide Ultra Base
2011 Harley-Davidson FLTRUSE CVO Road Glide Ultra Base
2015-2016 Harley-Davidson FLTRUSE CVO Road Glide Ultra Base
2010-2013 Harley-Davidson FLTRX Road Glide Custom Base
2015-2016 Harley-Davidson FLTRXS Road Glide Special Base
2012 Harley-Davidson FLTRXSE CVO Road Glide Custom Base
1995-2013 Harley-Davidson FXD Dyna Super Glide Base
1993-2005 Harley-Davidson FXDL Dyna Low Rider Base
2007-2016 Harley-Davidson FXDL Dyna Low Rider Base
2004-2006 Harley-Davidson FXDLI Dyna Low Rider Base
1993-2016 Harley-Davidson FXDWG Dyna Wide Glide Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
1999-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base
2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base
1987-1994 Harley-Davidson FXLR Low Rider Custom Base
1999 Harley-Davidson FXR2 Base
1999 Harley-Davidson FXR3 Base
2000 Harley-Davidson FXR4 Base
1984-1992 Harley-Davidson FXRS Low Glide Base

…and 13 additional fitments. Contact us to confirm yours.

Product Details

Product Description
Part Numbers
Sizing & Fit

About S&S Cycle

S&S Cycle engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full S&S Cycle lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

S&S Cycle 1.725:1 Ratio Rocker Arm Set

Optimize your engine's performance and durability with the S&S Cycle 1.725:1 Ratio Rocker Arm Set. Engineered for 1984 and later Harley-Davidson Big Twin models, this set provides a precise ratio increase, leading to improved valve lift and overall engine efficiency.

Precision Performance Upgrade:

  • Features a 1.725:1 rocker arm ratio for increased valve lift.
  • Precision-machined for smooth operation and reduced friction.
  • Constructed with high-quality materials for exceptional durability and longevity.
  • Direct replacement for stock rocker arms on 1984+ Harley-Davidson Big Twin engines.
  • Enhances camshaft performance, leading to increased horsepower and torque.
  • Ideal for both performance builds and stock engine upgrades.

Maximize Your Engine's Potential:

The rocker arm ratio plays a critical role in determining how much the valves open and for how long. By increasing the ratio to 1.725:1, this S&S Cycle set allows your camshaft to more effectively open the valves, leading to better cylinder filling and scavenging. This translates into tangible gains in power and torque across the entire RPM range. The superior construction ensures these rocker arms can withstand the increased stresses associated with higher lift and performance camshafts, providing reliable operation for miles to come. Whether you're building a custom hot rod or simply looking to get more out of your stock engine, this rocker arm set is a smart investment.

Achieve greater performance from your Big Twin. Get the S&S Cycle 1.725:1 Ratio Rocker Arm Set today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1997-2016 Harley-Davidson FLHR Road King Base
2007-2016 Harley-Davidson FLHRC Road King Classic Base
1998-2006 Harley-Davidson FLHRCI Road King Classic Base
1996-1997 Harley-Davidson FLHRI Road King Base
2000-2006 Harley-Davidson FLHRI Road King Base
2004-2007 Harley-Davidson FLHRS Road King Custom Base
1984 Harley-Davidson FLHS Electra Glide Sport Base
1987-1993 Harley-Davidson FLHS Electra Glide Sport Base
1999-2000 Harley-Davidson FLHT Electra Glide Standard Base
2003 Harley-Davidson FLHT Electra Glide Standard Base
2006-2009 Harley-Davidson FLHT Electra Glide Standard Base
1984-2005 Harley-Davidson FLHTC Electra Glide Classic Base
2007-2013 Harley-Davidson FLHTC Electra Glide Classic Base
1996-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
1989-1997 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
2007-2016 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
1995-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2009-2013 Harley-Davidson FLHTCUTG Tri Glide Ultra Classic Base
2015-2016 Harley-Davidson FLHTKL Ultra Limited Low Base
2014-2016 Harley-Davidson FLHTKSE CVO Limited Base
2006-2016 Harley-Davidson FLHX Street Glide Base
2014-2016 Harley-Davidson FLHXS Street Glide Special Base
2010-2012 Harley-Davidson FLHXSE CVO Street Glide Base
2015-2016 Harley-Davidson FLHXSE CVO Street Glide Base
2010-2011 Harley-Davidson FLHXXX Street Glide Trike Base
2012-2016 Harley-Davidson FLS Softail Slim Base
2016 Harley-Davidson FLSS Softail Slim S Base
1986-1990 Harley-Davidson FLST Heritage Softail Base
2006 Harley-Davidson FLST Heritage Softail Base
1988-2016 Harley-Davidson FLSTC Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
1990-2016 Harley-Davidson FLSTF Fat Boy Base
2010-2016 Harley-Davidson FLSTFB Fat Boy Lo Base
2016 Harley-Davidson FLSTFBS Fat Boy S Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
1994-1996 Harley-Davidson FLSTN Heritage Softail Special Base
2008-2011 Harley-Davidson FLSTSB Cross Bones Base
2010-2012 Harley-Davidson FLSTSE CVO Softail Convertible Base
1998-2013 Harley-Davidson FLTR Road Glide Base
2015-2016 Harley-Davidson FLTR Road Glide Base
1998-2006 Harley-Davidson FLTRI Road Glide Base
2011-2016 Harley-Davidson FLTRU Road Glide Ultra Base
2011 Harley-Davidson FLTRUSE CVO Road Glide Ultra Base
2015-2016 Harley-Davidson FLTRUSE CVO Road Glide Ultra Base
2010-2013 Harley-Davidson FLTRX Road Glide Custom Base
2015-2016 Harley-Davidson FLTRXS Road Glide Special Base
2012 Harley-Davidson FLTRXSE CVO Road Glide Custom Base
1995-2013 Harley-Davidson FXD Dyna Super Glide Base
1993-2005 Harley-Davidson FXDL Dyna Low Rider Base
2007-2016 Harley-Davidson FXDL Dyna Low Rider Base
2004-2006 Harley-Davidson FXDLI Dyna Low Rider Base
1993-2016 Harley-Davidson FXDWG Dyna Wide Glide Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
1999-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base
2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base
1987-1994 Harley-Davidson FXLR Low Rider Custom Base
1999 Harley-Davidson FXR2 Base
1999 Harley-Davidson FXR3 Base
2000 Harley-Davidson FXR4 Base
1984-1992 Harley-Davidson FXRS Low Glide Base

…and 13 additional fitments. Contact us to confirm yours.

Product Details

Product Description

About S&S Cycle

S&S Cycle engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full S&S Cycle lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

S&S Cycle 1.725:1 Ratio Rocker Arm Set

Optimize your engine's performance and durability with the S&S Cycle 1.725:1 Ratio Rocker Arm Set. Engineered for 1984 and later Harley-Davidson Big Twin models, this set provides a precise ratio increase, leading to improved valve lift and overall engine efficiency.

Precision Performance Upgrade:

  • Features a 1.725:1 rocker arm ratio for increased valve lift.
  • Precision-machined for smooth operation and reduced friction.
  • Constructed with high-quality materials for exceptional durability and longevity.
  • Direct replacement for stock rocker arms on 1984+ Harley-Davidson Big Twin engines.
  • Enhances camshaft performance, leading to increased horsepower and torque.
  • Ideal for both performance builds and stock engine upgrades.

Maximize Your Engine's Potential:

The rocker arm ratio plays a critical role in determining how much the valves open and for how long. By increasing the ratio to 1.725:1, this S&S Cycle set allows your camshaft to more effectively open the valves, leading to better cylinder filling and scavenging. This translates into tangible gains in power and torque across the entire RPM range. The superior construction ensures these rocker arms can withstand the increased stresses associated with higher lift and performance camshafts, providing reliable operation for miles to come. Whether you're building a custom hot rod or simply looking to get more out of your stock engine, this rocker arm set is a smart investment.

Achieve greater performance from your Big Twin. Get the S&S Cycle 1.725:1 Ratio Rocker Arm Set today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1997-2016 Harley-Davidson FLHR Road King Base
2007-2016 Harley-Davidson FLHRC Road King Classic Base
1998-2006 Harley-Davidson FLHRCI Road King Classic Base
1996-1997 Harley-Davidson FLHRI Road King Base
2000-2006 Harley-Davidson FLHRI Road King Base
2004-2007 Harley-Davidson FLHRS Road King Custom Base
1984 Harley-Davidson FLHS Electra Glide Sport Base
1987-1993 Harley-Davidson FLHS Electra Glide Sport Base
1999-2000 Harley-Davidson FLHT Electra Glide Standard Base
2003 Harley-Davidson FLHT Electra Glide Standard Base
2006-2009 Harley-Davidson FLHT Electra Glide Standard Base
1984-2005 Harley-Davidson FLHTC Electra Glide Classic Base
2007-2013 Harley-Davidson FLHTC Electra Glide Classic Base
1996-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
1989-1997 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
2007-2016 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
1995-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2009-2013 Harley-Davidson FLHTCUTG Tri Glide Ultra Classic Base
2015-2016 Harley-Davidson FLHTKL Ultra Limited Low Base
2014-2016 Harley-Davidson FLHTKSE CVO Limited Base
2006-2016 Harley-Davidson FLHX Street Glide Base
2014-2016 Harley-Davidson FLHXS Street Glide Special Base
2010-2012 Harley-Davidson FLHXSE CVO Street Glide Base
2015-2016 Harley-Davidson FLHXSE CVO Street Glide Base
2010-2011 Harley-Davidson FLHXXX Street Glide Trike Base
2012-2016 Harley-Davidson FLS Softail Slim Base
2016 Harley-Davidson FLSS Softail Slim S Base
1986-1990 Harley-Davidson FLST Heritage Softail Base
2006 Harley-Davidson FLST Heritage Softail Base
1988-2016 Harley-Davidson FLSTC Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
1990-2016 Harley-Davidson FLSTF Fat Boy Base
2010-2016 Harley-Davidson FLSTFB Fat Boy Lo Base
2016 Harley-Davidson FLSTFBS Fat Boy S Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
1994-1996 Harley-Davidson FLSTN Heritage Softail Special Base
2008-2011 Harley-Davidson FLSTSB Cross Bones Base
2010-2012 Harley-Davidson FLSTSE CVO Softail Convertible Base
1998-2013 Harley-Davidson FLTR Road Glide Base
2015-2016 Harley-Davidson FLTR Road Glide Base
1998-2006 Harley-Davidson FLTRI Road Glide Base
2011-2016 Harley-Davidson FLTRU Road Glide Ultra Base
2011 Harley-Davidson FLTRUSE CVO Road Glide Ultra Base
2015-2016 Harley-Davidson FLTRUSE CVO Road Glide Ultra Base
2010-2013 Harley-Davidson FLTRX Road Glide Custom Base
2015-2016 Harley-Davidson FLTRXS Road Glide Special Base
2012 Harley-Davidson FLTRXSE CVO Road Glide Custom Base
1995-2013 Harley-Davidson FXD Dyna Super Glide Base
1993-2005 Harley-Davidson FXDL Dyna Low Rider Base
2007-2016 Harley-Davidson FXDL Dyna Low Rider Base
2004-2006 Harley-Davidson FXDLI Dyna Low Rider Base
1993-2016 Harley-Davidson FXDWG Dyna Wide Glide Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
1999-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base
2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base
1987-1994 Harley-Davidson FXLR Low Rider Custom Base
1999 Harley-Davidson FXR2 Base
1999 Harley-Davidson FXR3 Base
2000 Harley-Davidson FXR4 Base
1984-1992 Harley-Davidson FXRS Low Glide Base

…and 13 additional fitments. Contact us to confirm yours.

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