RHINO-RACK Backbone Rack System Kit RCL Legs With 3 Vortex Cross Bars +(Jeep Wrangler JKU '07-'18 4dr Hardtop)

SKU: RR-JC-01312

A complete kit with everything you need to add a frame-supported rack system with black cross bars to your Jeep Wrangler JL 4 Door Hardtop!

PLEASE NOTE: Free shipping (within the US) is available on Rhino-Rack Backbone Systems (including this kit). We also offer installation services at either of our two California locations for all Roof Racks and accessories that we carry.

PLEASE NOTE: Drilling into the hardtop is required to install the Wrangler JKU Backbone System.

If you have a JLU please check out that kit here. 

Rhino Rack Backbone logo

Wranger JKU Vortex Cross Bars + Backbone Rack System Overview

This is the preferred roof rack system for Jeep JKU looking to mount roof top tents or other large equipment. The Backbone provides internal skeletal support frames for the included mounting plates. Interior integration of the Backbone support frames creates a series of 3 incredibly robust base mounting points on each side of JKU hardtop roof.

The Vortex RCL roof rack system attaches to the Rhino-Rack Backbone. This simple design improves on the existing strength of your Jeep Wrangler without compromising the sleek and bold look of this iconic vehicle. The Rhino-Rack Backbone is fitted to the internal chassis of your Jeep Wrangler. This design will not hinder any of the current capabilities of your Jeep's design. The legs and cross bars of the RCL system can easily be removed when they are not required using a revolutionary trigger locking system.

Rhino-Rack Wrangler JKU Vortex Cross Bars + Backbone Rack System Kit Components and Specifications

Rack System Kit Components

  • Backbone Mounting System for Jeep Wrangler JKU 4 Door Hardtops (drilling required)
  • 6x RCL Legs (Low Profile legs)
  • 1x Quick Mount Vortex Space Kit 
  • 1x JK 4rd Hardware Kit
  • 3x black Vortex Cross Bars (each cross bar is 59" long)

Rhino-Rack Wrangler JL Vortex Cross Bars + Backbone Rack System Kit Features

  • The Rhino-Rack Backbone Mounting System allows you to tap into the interior support frame of the Wrangler JL hardtop, so you can maximize your carrying capacity and safely carry heavier loads- 
  • The strength of the backbone system is complemented by the simplicity of 3 heavy duty vortex cross bars, which maintain the strength of the backbone but add minimal weight themselves, leaving more carrying capacity for your gear.
  • A lockable cover plate protects the locking mechanism and is Masterkey compatible.
  • Aerodynamically designed with vortex generating rubber stripping on crossbars to minimize wind drag and noise on the road.


Don't have a 4 door Jeep Wrangler JKU Hardtop, but interested in a Backbone System for your rig? Let us know your vehicle information, or just call us, and if the part exists, we will get it for you.

We can design custom roof rack setups for most vehicles to fit your specific storage and or roof top tent requirements. Some of our most popular products are available online, but for a complete review of our capabilities, please reach out via phone or email. We're more than happy to walk you through various design applications for your custom build.