Arlen Ness 320-104 Monoblock Axial Brake Caliper - 11.8" - Left - Black

• One-piece monoblock design CNC machined from a single piece of aerospace grade billet aluminum to eliminate flex points and increase hydraulic efficiency
• Differential bore six pistons with optimized diameters ensure balanced pad pressure and improved linear braking feel
• Optimized hydraulic architecture for internal routing to promote consistent clamping force under high-load conditions
• Single piece design eliminates the chance of leaks associated with two-piece calipers
• Advanced thermal management via sculpted body with integrated cooling fins improves heat dissipation and reduces fade
• Compatible with ABS or non-ABS applications
• Includes bleeder screw, banjo bolt and high performance sintered brake pads with dual relief slots for enhanced heat evacuation and debris clearing

2025 Harley-Davidson FLHXU Street Glide Ultra - Notes: 2025 Without radial calipers 2025 Harley-Davidson Softail Low Rider ST FXLRST - - 2025 Harley-Davidson Road Glide Custom FLTRX - Notes: 2025 Without radial calipers 2025 Harley-Davidson Road Glide 3 FLTRT - - 2025 Harley-Davidson Electra Glide Police FLHTP - Notes: 2025 Without radial calipers 2025 Harley-Davidson Street Glide EFI FLHX - Notes: 2025 Without radial calipers 2025 Harley-Davidson Tri Glide Ultra Classic FLHTCUTG - - 2025 Harley-Davidson FLTRXRRSE CVO Road Glide RR - Notes: 2025 Without radial calipers 2025 Harley-Davidson FLHC Heritage Classic 117 - Notes: 2025 Without radial calipers 2025 Harley-Davidson Softail Fat Boy FLFB - - 2025 Harley-Davidson Softail Low Rider S FXLRS - - 2025 Harley-Davidson Softail Breakout FXBR - - 2025 Harley-Davidson Freewheeler FLRT - - 2025 Harley-Davidson Road King Police FLHP - Notes: 2025 Without radial calipers 2024-2025 Harley-Davidson FLTRXSTSE CVO Road Glide ST - Notes: 2024-2025 Without radial calipers 2024-2025 Harley-Davidson Road Glide Police FLTRXP - Notes: 2024-2025 Without radial calipers 2023-2025 Harley-Davidson FLTRT Road Glide 3 - - 2023-2025 Harley-Davidson FXBR Breakout 117 - - 2023 Harley-Davidson FLHFB Electra Glide Highway King - Notes: 2023 Without radial calipers 2022-2025 Harley-Davidson FXLRS Low Rider S 117 - - 2022-2025 Harley-Davidson FXLRST Low Rider ST 117 - - 2022-2023 Harley-Davidson FLTRXST Road Glide ST - Notes: 2022-2023 Without radial calipers 2022-2023 Harley-Davidson FLTRKSE CVO Road Glide Limited - Notes: 2022-2023 Without radial calipers 2022 , 2025 Harley-Davidson Softail Street Bob FXBB - - 2022 Harley-Davidson FLHTCUTG Tri Glide Ultra G.I. - - 2022 Harley-Davidson FLHXST Street Glide ST - Notes: 2022 Without radial calipers 2022 Harley-Davidson FXRST Low Rider El Diablo 117 - - 2021-2024 Harley-Davidson FXBBS Street Bob 114 - - 2021 Harley-Davidson FLH Electra Glide Revival - Notes: 2021 Without radial calipers 2020-2024 Harley-Davidson FLTRK Road Glide Limited - Notes: 2020-2024 Without radial calipers 2020-2024 Harley-Davidson FXST Softail Standard 107 - - 2020-2022 Harley-Davidson FLHTCUTGSE CVO Tri Glide - - 2020-2021 Harley-Davidson FXLRS Low Rider S 114 - - 2019-2025 Harley-Davidson FLRT Freewheeler - - 2019-2020 Harley-Davidson FXDRS FXDR 114 - - 2018-2024 Harley-Davidson FLHCS Heritage Classic 114 - Notes: 2018-2024 Without radial calipers 2018-2024 Harley-Davidson FLFBS Fat Boy 114 - - 2018-2023 Harley-Davidson FXFBS Fat Bob 114 - - 2018-2021 Harley-Davidson FLHC Heritage Classic 107 - Notes: 2018-2021 Without radial calipers 2018-2021 Harley-Davidson FLSL Softail Slim 107 - - 2018-2021 Harley-Davidson FLSB Sport Glide 107 - - 2018-2020 Harley-Davidson FLDE Deluxe 107 - - 2018-2020 Harley-Davidson FXBB Street Bob 107 - - 2018-2020 Harley-Davidson FXBRS Breakout 114 - - 2018-2020 Harley-Davidson FXLR Low Rider 107 - - 2018-2019 Harley-Davidson FXBR Breakout 107 - - 2018-2019 Harley-Davidson FLFB Fat Boy 107 - - 2018-2019 Harley-Davidson FXFB Fat Bob 107 - - 2017-2025 Harley-Davidson FLHRXS Road King Special - Notes: 2017-2025 Without radial calipers 2016-2017 Harley-Davidson FXDLS Low Rider S - - 2016-2017 Harley-Davidson FLSTFBS Fat Boy S - - 2016-2017 Harley-Davidson FXSE CVO Pro Street Breakout - - 2016-2017 Harley-Davidson FLSS Softail Slim S - - 2015-2025 Harley-Davidson FLTRX Road Glide - Notes: 2015-2025 Without radial calipers 2015-2023 Harley-Davidson FLTRXS Road Glide Special - Notes: 2015-2023 Without radial calipers 2015-2019 Harley-Davidson FLHTKL Ultra Limited Low - Notes: 2015-2019 Without radial calipers 2015-2016 Harley-Davidson FLHTCUL Electra Glide Ultra Classic Low - Notes: 2015-2016 Without radial calipers 2014-2023 Harley-Davidson FLHXS Street Glide Special - Notes: 2014-2023 Without radial calipers 2014-2021 Harley-Davidson FLHTKSE CVO Limited - Notes: 2014-2021 Without radial calipers 2014-2017 Harley-Davidson FXDL Low Rider - - 2014-2015 Harley-Davidson FLSTNSE CVO Softail Deluxe - - 2014 Harley-Davidson FLHRSE6 CVO Road King - Notes: 2014 Without radial calipers 2014 Harley-Davidson CVO Road King FLHRSE - Notes: 2014 Without radial calipers 2014 Harley-Davidson Electra Glide Ultra Classic Low FLHTCUL - Notes: 2014 Without radial calipers 2013-2017 Harley-Davidson FXSB Breakout - - 2013-2014 Harley-Davidson FXSBSE CVO Breakout - - 2013 Harley-Davidson FLHTCUSE8 CVO Ultra Classic Electra Glide - Notes: 2013 Without radial calipers 2013 Harley-Davidson FLTRXSE2 CVO Road Glide Custom - Notes: 2013 Without radial calipers 2013 Harley-Davidson FLHRSE5 CVO Road King - Notes: 2013 Without radial calipers 2012-2017 Harley-Davidson FLS Softail Slim - - 2012-2016 Harley-Davidson FLD Switchback - - 2012 , 2018-2025 Harley-Davidson FLTRXSE CVO Road Glide - Notes: 2012, 2018-2025 Without radial calipers 2012 Harley-Davidson FLHXSE3 CVO Street Glide - Notes: 2012 Without radial calipers 2012 Harley-Davidson FLHTCUSE7 CVO Ultra Classic Electra Glide - Notes: 2012 Without radial calipers 2012 Harley-Davidson FLSTSE3 CVO Softail Convertible - - 2012 Harley-Davidson FLTRXSE CVO Road Glide Custom - Notes: 2012 Without radial calipers 2011-2013 , 2016-2019 Harley-Davidson FLTRU Road Glide Ultra - Notes: 2011-2013, 2016-2019 Without radial calipers 2011-2013 Harley-Davidson FXS Blackline - - 2011 , 2015-2016 Harley-Davidson FLTRUSE CVO Road Glide Ultra - Notes: 2011, 2015-2016 Without radial calipers 2011 Harley-Davidson FLSTSE2 CVO Softail Convertible - - 2011 Harley-Davidson FLHTCUSE6 CVO Ultra Classic Electra Glide - Notes: 2011 Without radial calipers 2011 Harley-Davidson FLHXSE2 CVO Street Glide - Notes: 2011 Without radial calipers 2010-2024 Harley-Davidson FLHTK Ultra Limited - Notes: 2010-2024 Without radial calipers 2010-2017 Harley-Davidson FLSTFB Fat Boy Lo - - 2010-2014 Harley-Davidson FLHTK Electra Glide Ultra Limited - Notes: 2010-2014 Without radial calipers 2010-2013 Harley-Davidson FLTRX Road Glide Custom - Notes: 2010-2013 Without radial calipers 2010-2012 Harley-Davidson Softail Standard EFI FXSTI - - 2010-2011 Harley-Davidson FLHXXX Street Glide Trike - - 2010 , 2015-2025 Harley-Davidson FLHXSE CVO Street Glide - Notes: 2010, 2015-2025 Without radial calipers 2010 Harley-Davidson FLSTSE CVO Softail Convertible - - 2010 Harley-Davidson FLHTCUSE5 CVO Ultra Classic Electra Glide - Notes: 2010 Without radial calipers 2010 Harley-Davidson FXDFSE2 CVO Dyna Fat Bob - - 2009-2013 , 2019-2025 Harley-Davidson FLHTCUTG Tri Glide Ultra - - 2009-2013 Harley-Davidson FLHTCUTG Tri Glide Ultra Classic - - 2009 Harley-Davidson Fat Boy Lo FLSTFB - - 2009 Harley-Davidson FLHTCUSE4 CVO Ultra Classic Electra Glide - Notes: 2009 Without radial calipers 2009 Harley-Davidson FLTRSE3 CVO Road Glide - Notes: 2009 Without radial calipers 2009 Harley-Davidson FXDFSE CVO Dyna Fat Bob - - 2008-2025 Harley-Davidson Electra Glide Police FLHTPI - Notes: 2008-2025 Without radial calipers 2008-2025 Harley-Davidson FLHX Street Glide - Notes: 2008-2025 Without radial calipers 2008-2022 Harley-Davidson FLHR Road King - Notes: 2008-2022 Without radial calipers 2008-2019 Harley-Davidson FLHTCU Electra Glide Ultra Classic - Notes: 2008-2019 Without radial calipers 2008-2017 Harley-Davidson FXDF Fat Bob - - 2008-2013 Harley-Davidson FLHTC Electra Glide Classic - Notes: 2008-2013 Without radial calipers 2008-2013 Harley-Davidson FLHRC Road King Classic - Notes: 2008-2013 Without radial calipers 2008-2011 Harley-Davidson FLSTSB Cross Bones - - 2008-2011 Harley-Davidson FXCWC Rocker C - - 2008-2010 , 2016 Harley-Davidson FLTR Road Glide - Notes: 2008-2010, 2016 Without radial calipers 2008-2009 , 2019-2022 Harley-Davidson FLHT Electra Glide Standard - Notes: 2008-2009, 2019-2022 Without radial calipers 2008-2009 Harley-Davidson FXCW Rocker - - 2008 Harley-Davidson FLHRSE3 Screamin Eagle Road King - Notes: 2008 Without radial calipers 2008 Harley-Davidson FLHTCUSE3 Screamin Eagle Ultra Classic Electra Glide - Notes: 2008 Without radial calipers 2008 Harley-Davidson FLHRSE4 Screamin Eagle Road King - Notes: 2008 Without radial calipers 2008 Harley-Davidson FXDSE2 Screamin Eagle Dyna - - 2007-2014 Harley-Davidson FXDC Super Glide Custom - - 2007-2010 Harley-Davidson FXSTC Softail Custom - - 2007-2009 , 2014-2017 Harley-Davidson FXDL Dyna Low Rider - - 2007 , 2010 Harley-Davidson Softail Rocker FXCW - - 2007 Harley-Davidson Softail Rocker C FXCWC - - 2007 Harley-Davidson FXDSE Screamin Eagle Dyna - - 2006-2017 Harley-Davidson FLSTF Fat Boy - - 2006-2017 Harley-Davidson FLSTN Softail Deluxe - - 2006-2017 Harley-Davidson FLSTC Heritage Softail Classic - - 2006-2017 Harley-Davidson FXDB Street Bob - - 2006-2010 Harley-Davidson FXD Dyna Super Glide - - 2006-2009 Harley-Davidson FXSTB Night Train - - 2006-2009 Harley-Davidson FXST Softail Standard - - 2006-2008 , 2010-2017 Harley-Davidson FXDWG Dyna Wide Glide - - 2006-2007 Harley-Davidson FXSTD Softail Deuce - - 2006 Harley-Davidson FXDI35 Dyna 35th Anniversary Super Glide - - 2006 Harley-Davidson FLSTCI Heritage Softail Classic - - 2006 Harley-Davidson FXDWGI Dyna Wide Glide - - 2006 Harley-Davidson FXSTDI Softail Deuce - - 2006 Harley-Davidson Low Rider FXDL - - 2006 Harley-Davidson FLSTI Heritage Softail - - 2006 Harley-Davidson FXDI Dyna Super Glide - - 2006 Harley-Davidson FLSTFSE Screamin Eagle Fat Boy - - 2006 Harley-Davidson FLSTFSE2 Screamin Eagle Fat Boy - - 2006 Harley-Davidson FLST Heritage Softail - - 2006 Harley-Davidson FLSTFI Fat Boy - - 2006 Harley-Davidson FLSTNI Softail Deluxe - - 2006 Harley-Davidson FXDBI Street Bob - - 2006 Harley-Davidson FXDCI Super Glide Custom - - 2006 Harley-Davidson FXDLI Dyna Low Rider - - 2006 Harley-Davidson FXSTBI Night Train - - 2006 Harley-Davidson FXSTI Softail Standard - -