Engineering
Technical Papers
Our Technical Papers section is where we put the real nuts‑and‑bolts work behind NATVRAL® eTilt and MotionOS. It’s meant for riders, engineers, product folks, and biomechanics teams who actually want to see how we tested things, what we measured, and where the limits are—not just the polished marketing story.
We’ll use this space for deeper dives on rider posture, saddle‑tilt behavior on real terrain, reliability and fatigue work, test methods, and how the system plugs into OEM platforms. The idea is that you can read a paper here, pull numbers or methods straight into your own scope, and still see enough detail to poke holes if something doesn’t add up.
One of the first, yet‑to‑be‑published papers is a biomechanical report run with a leading university lab, using closed trainer sessions and real riders on fully instrumented mountain and gravel bikes. That study looks at how saddle tilt changes kinematics, pressure mapping, and rider control inputs over simulated trail grades during climbing. More papers will follow as we finish additional test programs around materials, control strategies, and hardware.
Available Now
Pelvic Tilt & Low‑Back Pain in Cyclists
Relationship Between Body Positioning, Muscle Activity, and Spinal Kinematics in Cyclists With and Without Low Back Pain — a foundational study informing how dynamic saddle tilt can reduce lumbar loading and improve rider comfort over long distances.
Download PDFForthcoming
Upcoming Research
We have additional test programs underway covering materials science, control strategies, hardware durability, and rider‑biomechanics validation. Papers will be published here as each study concludes.
Biomechanics
University Lab Study
Closed trainer sessions with instrumented mountain and gravel bikes measuring kinematics, pressure mapping, and control inputs over simulated trail grades.
Hardware
Fatigue & Reliability
Materials testing and fatigue analysis across real‑world load scenarios for long‑term durability validation.
Limited Reservation Access
Follow the build & reserve production access.
NATVRAL® FullTilt is in Limited Production Underway—a $0 production reservation / compatibility program routing allocation updates ahead of storefront checkout (not crowdfunding).
NATVRAL® e‑Tilt® is still in the lab, with global athletes and engineers testing the platform now. Enter the reservation queue to follow the build, get release updates, and be first to know what opens next.
Reserve Access →Launch updates and production availability only — no spam.




