Chassis
A 4130 chromoly tube frame weighing 84.6 lb, built for driver protection and stiffness, wrapped in a carbon-fiber seat and body panels.

2025–26 · Car #51
Every season we start from a clean sheet. Our 2025–26 car pairs a 4130 chromoly chassis with a carbon-fiber seat and body, a custom two-stage gearbox, titanium axles, and an electronically controlled CVT.
A 4130 chromoly tube frame weighing 84.6 lb, built for driver protection and stiffness, wrapped in a carbon-fiber seat and body panels.
Front double A-arms and rear semi-trailing arms with 13–13.5 inches of travel to absorb rocks, logs, and hard landings.
An electronic CVT with about 80% less rotating inertia than an off-the-shelf unit drives a custom two-stage reduction gearbox with carburized 8620 steel gears and titanium axles.
Electronic CVT control plus the sensors and data acquisition we use to validate every design in the dirt.
In-house fabrication and machining backed by industry partners, from tube bending and welding to gear hobbing and splining.
2026–27 build
✓ Done
Initial design review 1
Aug 9, 2026
✓ Done
Initial design review 2
Sep 13, 2026
Up next
Engineering design review 1
Oct 25, 2026
Upcoming
Engineering design review 2
Nov 15, 2026
Upcoming
Design freeze
Nov 22, 2026
Upcoming
Rolling chassis
Feb 14, 2027
Upcoming
First drive
Feb 28, 2027
Upcoming
SAE Rollout
Apr 18, 2027 (tentative)
Upcoming
Competition
May 20, 2027
Racing since 2018
2024–25
Maryland
31stOverall
2023–24
Williamsport, Pennsylvania
18thOverall
2022–23
Oregon
44thOverall
2021–22
Tennessee
27thOverall
2020–21
Online
2019–20
Online
16thOverall
2018–19
California
52ndOverall
2017–18
Kansas
33rdOverall of 95
The 2026–27 car is being designed now. Partner with us to ride on it at Rollout and competition.