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
• Progressive-rate powder-coated springs for stability under load
• Maxima 3.0 WT full synthetic fluid for consistent damping
• +8mm / -2mm adjustable shock length
• 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

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.