JAC39 / Springs, adjusters and collars shown for reference.
JACN / Spring and adjuster configuration reference.
Black adjusters / Multiple lengths shown for comparison.
Raw adjusters / Two length examples shown for comparison.
Front spring + preload kit · Choose your bike
Preload kit + springs
Adjuster cap, springs and lift, selected for your bike and fork diameter.
Made to order · Built for your bike
Configure your setup
Choose your bike and hardware below. These details stay with your order so the shop can build the correct setup.
Loading your bike and build options…
Complete the selections and confirm your setup before adding to cart.
No imports. No compromise.
Start with your setup.
Application requirements
Conventional forks only. 49 mm: 2014–2027 Touring, 2006–2017 Dyna (not Wide Glide), 2018–2027 M8 Softail and compatible Sportster 49 mm setups. Nightster 2022–2027 uses the 41 mm JACN kit. The 39 mm JAC39 kit is selected by actual fork setup.
Before you order
Ask us about current build time, warranty coverage, and installation for your exact bike.
Talk to the people who build it