12" Dual Adjustable Harley Davidson Dyna Shocks **INSTOCK Ready to SHIP today** 12" Dual Adjustable Nowaskey Dyna Shocks Fitment: Direct bolt-on for Harley-Davidson® Dyna models from 1991–2017 Spring Rates Available: 115 lb/in (Light), 130 lb/in (Medium), 140 lb/in (Heavy), 150 lb/in (Stunt) Warranty: Backed by the Nowaskey® Limited Lifetime Warranty Built to Last — Backed for Life Every Nowaskey® suspension product is backed by a Limited Lifetime Warranty and built to meet the demands of real-world riders. These shocks are fully serviceable and rebuildable, with a recommended rebuild schedule of every 50,000 miles to maintain peak performance and reliability. Need a different feel? Springs can be swapped at home with standard tools — no spring compressor or specialty equipment needed. Whether you're dialing in comfort, payload, or performance, adjusting your spring rate is quick and simple. Spring Rate Guide Choose the ideal spring rate for your weight and riding style: 115 lb/in – Light 130 lb/in – Medium 140 lb/in – Heavy 150 lb/in – Stunt Not sure what you need? Email us at [email protected] and we’ll help you select the perfect setup. Installation & Tuning Guide available for download. Engineered for Performance Dyna Riders Nowaskey® 12" Dual Adjustable Rear Shocks are designed for riders who expect more from their suspension — whether you're a stunt rider or a long-distance traveler. Instantly adapt to changing road conditions, payload, or riding style with easy-to-access adjustments. The Nowaskey® Difference Hand-built in the USA with American materials, every shock is dyno-tuned and paired for consistent, dependable performance — built by riders, for riders. Key Features Proprietary piston and valving tuned for aggressive and responsive performance 1" Teflon®-lined spherical bearings reduce friction and correct for OEM misalignment Simultaneous rebound/compression adjustment (70% rebound / 30% compression) Lightweight, custom hardware with hand-adjustable preload Maxima 3.0 WT full synthetic fluid for consistent damping High-pressure nitrogen charge resists shock fade Low-friction shaft and seal head design for smooth travel Fully rebuildable with a 50,000-mile service schedule Springs are user-serviceable with no specialty tools required Limited Lifetime Warranty Proudly made in the USA Model Fitment: 1991–2017 Harley-Davidson® Dyna Models 1991-2005 Require HD part number 54666-08 Nowaskey® 12" Dual Adjustable Rear Shocks are a direct bolt-on fit for: Low Rider S FXDLS – 2016–2017 Switchback FLD – 2012–2016 CVO Fat Bob FXDFSE2 – 2010 CVO Fat Bob FXDFSE – 2009 Fat Bob FXDF – 2008–2017 Screamin’ Eagle Dyna FXDSE2 – 2008 Screamin’ Eagle Dyna FXDSE – 2007 Street Bob FXDB – 2006–2017 Super Glide FXD35 (35th Anniversary) – 2006 Super Glide Custom EFI FXDCI – 2005–2014 Super Glide Custom FXDC – 2005 Super Glide EFI FXDI – 2004–2010 Low Rider EFI FXDL – 2004–2009, 2014–2017 Super Glide Sport EFI FXDXI – 2004–2005 Wide Glide FXDWG3 – 2002 Super Glide T-Sport FXDXT – 2001–2003 Wide Glide FXDWG2 – 2001 Wide Glide EFI FXDWGI – 2000–2008, 2010–2017 Super Glide Sport FXDX – 1999–2005 Super Glide FXD – 1995–2006 Dyna Convertible FXDS-CONV – 1995–2000 Wide Glide FXDWG – 1993–2006 Low Rider FXDL – 1993–2006 Dyna Daytona FXDB – 1992 Dyna Glide Custom FXDC – 1992 Dyna Sturgis FXDB – 1991 Explore our complete line of Nowaskey® Performance Dyna Parts to finish your build.