New JConcepts LD3 and L1R Fin Titanium Turnbuckles

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By Car Brand Experts


New JConcepts LD3 and L1R Fin Titanium Turnbuckles

JConcepts has introduced a new line of 3.5mm Fin turnbuckles, the LD3, and L1R, designed for impeccable style, exceptional durability, and outstanding performance in the world of RC racing. These turnbuckles showcase a unique design with a .143” (3.7mm) titanium hex size that smoothly transitions into a 3.5mm thread base, making them compatible with Schumacher ball-cups after a minor modification. The standout feature of these turnbuckles lies in the extended adjustment hex area and the distinctive “finned” cuts that add a touch of elegance to their appearance. Crafted from top-quality machined titanium, these turnbuckles are not just lightweight but also exude a level of sophistication that titanium is renowned for globally. With left- and right-hand threads, the left side is clearly marked for easy identification.

A Closer Look at the Key Features

  • Original JConcepts Design with “Fin” Styling
    The turnbuckles boast a unique and stylish design that sets them apart.
  • High-Grade Machined Titanium Material
    Built to last using premium titanium for ultimate strength and performance.
  • Heavy-Duty 3.5mm Thread Base
    Ensuring robustness to withstand the rigors of competitive racing.
  • Left- and Right-Hand Threads with Clear Left Marking
    Simplifying installation and adjustment for a hassle-free experience.
  • Aesthetic Jewelry
    Enhancing the overall look of your vehicle with a touch of sophistication.

These turnbuckles have gained popularity among RC racing enthusiasts and professionals alike. The JConcepts race team, which includes esteemed champions like Spencer Rivkin, Dakotah Phend, Michal Orlowski, and Ryan Maifield, has embraced these turnbuckles for their superior performance on the track. To make the most of these turnbuckles with Schumacher ball-cups, a simple modification involving carefully drilling out the plastic parts with a 3.2mm drill bit is required (not included).

If you’re looking to elevate both the performance and aesthetics of your RC vehicle, the JConcepts LD3 and L1R Fin Titanium Turnbuckles offer a winning combination of style and functionality that are sure to impress.


The JConcepts LD3 and L1R Fin Titanium Turnbuckles are a testament to precision engineering and design excellence. Crafted from high-grade titanium, these turnbuckles not only enhance the performance of your RC vehicle but also add a touch of elegance with their unique “fin” styling. Trusted by champion racers and admired for their durability, these turnbuckles are a must-have upgrade for any serious RC enthusiast.


1. Are the JConcepts LD3 and L1R Fin Titanium Turnbuckles compatible with all RC vehicles?

These turnbuckles are designed to be compatible with most RC vehicles, with a 3.5mm thread base that fits Schumacher ball-cups after a minor modification.

2. Do I need any special tools to install the JConcepts turnbuckles?

While the turnbuckles come with left- and right-hand threads for easy adjustment, a JConcepts turnbuckle adjustment wrench (part # 2234) is recommended for precise installation.

3. Can the JConcepts LD3 and L1R Fin Titanium Turnbuckles improve the performance of my RC vehicle?

Yes, these turnbuckles are crafted from top-quality machined titanium, providing enhanced strength and durability, ultimately boosting the performance of your RC vehicle on the track.

By combining style, durability, and performance, the JConcepts LD3 and L1R Fin Titanium Turnbuckles are a standout choice for RC enthusiasts looking to take their racing experience to the next level.

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