2027 GEN4 Overview

Simplicity through design. And that’s just it, D1 Chassis simply just works! Our goal is to provide our drivers and owners with a product that is undeniable one of the nicest micro sprint chassis on the market today. We take pride in the product we produce, and our pride shows through in our craftsmanship. That craftsmanship also transfers to performance on the track. We guarantee, the first lap you take in a D1 Chassis, you will feel the difference! Everything you want and need in a race car, is right here with a D1 Chassis!

The D1 Chassis was first designed to go fast and handle well. Second, it was designed to look the part too! 2025 will brought an all new body to the table with the unveiling of our GEN4 look!

IN 2026, we worked hard to refine the GEN4 release from 2025, and our 2027 GEN4 is now in production with updates/changes:

  • Updated Front Rack Height
  • Updated Front Radius Rod Pick Ups
  • Updated Lower Frame Geometry
  • Updated Jacobs Ladder Geometry
  • Updated Rear Weight Bias

All of our components come anodized black: radius rods, spindles, birdcages, arms, ALL of it. We want your D1 to be the fastest race car you have ever owned, as well as the nicest!

MORE INFO

Torsion Bar Car

D1 Chassis are torsion bar cars. Why torsion bars? Torsion bars provide consistency and stability. Our standard long-bar (LBX) front torsion bar design provides for the utmost weight transfer and forward bite on corner exit. With that, set ups and adjustments are consistent and predictable when you need a race car that you can rely on to be there every lap of every race!

Of course, in recent years we have made provisions for the ability to run coil-over springs in place of torsion bars. This serves well in Non-Wing applications and we have recognized the benefits!

Jacobs Ladder Car

D1 Chassis are Jacob’s Ladder cars. Our Jacob’s Ladder geometry is specific to provide that side bite every driver is looking for on corner exit.

In since 2024 we have ben on a mission refining this integral part of an open wheel dirt car. In 2026 we locked in on what w had learned, failed, and triumphed from. In a 2027 GEN4, we guarantee the first lap you take, you will know exactly how much progress we have made! Added bonus, every D1 Jacob’s Ladder is adjustable to fine tune your car with changing track surfaces.

Safety Bars

Safety is very important to us and we want you to be sure that your driver is in the safest place possible out on the track.

Available Safety Options Include:

  • STANDARD
    • Outlaw Bars (Right and/or Left) [Vertical]
  • OPTIONAL
    • Sissy Bars (Right and/or Left) [Horizontal]
    • Left Side J-Bar (aka Smith Bar)
    • Cage Halo (updated design for 2020)
    • Mid-Tube Supports
    • .083 Main Rail Option

Driver Comfort

Race car drivers come in all different shapes and sizes. We want every one of our drivers to find their level of comfort their first time in the car. Our chassis has extra roll cage height to give our drivers to most cushion possible when it is needed.

Available Add-Ons for Driver Comfort:

  • Kid Pedal Rails
  • Weight Tabs

The Gen4 Body boasts a new multi-piece hood and arm guard design. This allows for easy removal, and a cooler driver cockpit based on our new design. Individual panels will pack and ship more affordably and will be easier to replace! Standard with Black Fiberglass available in Carbon Fiber!

Our Chassis Kits

Here’s a short list of what to expect from our 2027 D1 GEN4:

  • New Body Design
  • New Radiator Design/Vortex Paneling
  • “H” Frame, adjustable Seat Mounting System
  • Increased Safety Features
  • Standard Adjustable PanHard Bar Location
  • Standard Adjustable Rear Radius Rod Locations
  • Standard Outlaw Safety Bars
  • 2027 Updated Front Rack Height
  • 2027 Updated Front Radius Rod Pick Ups
  • 2027 Updated Lower Frame Geometry
  • 2027 Updated Jacobs Ladder Geometry
  • 2027 Updated Rear Weight Bias
Available Add-Ons: (at additional cost)
  • .083 Main Rail Upgrade
  • Updated & Improved Safety Halo Design
  • Kid Pedal Rails
  • Weight Tabs
  • Carbon Fiber Body
  • Micro Sprint | 2027 D1 GEN4 / JRX3 Build Deposit

    $500.00
  • Micro Sprint – D1 2025 GEN4 Chassis & Body Kit
    Select options This product has multiple variants. The options may be chosen on the product page

    Micro Sprint | D1 2025 GEN4 Chassis & Body Kit

    Price range: $5,599.99 through $9,598.98
  • Jr. Sprint | D1 JRX3 2025 Deluxe Kit

    $10,229.99
  • Jr. Sprint | D1 JRX3 2025 Max Deluxe Kit

    $13,249.99
  • Micro Sprint – D1 2025 GEN4 Chassis & Body Kit (view 3)
    Select options This product has multiple variants. The options may be chosen on the product page

    Micro Sprint | D1 2025 GEN4 Deluxe Car Kit

    Price range: $10,759.99 through $17,099.99
  • D1 2025 GEN4 Conversion Kit - Driven Universal Fitment Micro Sprint part
    Select options This product has multiple variants. The options may be chosen on the product page

    Micro Sprint | D1 2025 GEN4 Conversion Kit – Driven Universal

    Price range: $7,699.95 through $10,699.95