Technology

Varionova develops next-generation transmission systems that can change the architectural paradigm of many machines, making them more efficient and practical. Our flagship technology is the RatioZero transmission, the first commercially viable gear-based CVT.

"Split Rotation" Systems

The RatioZero, our first and most famous product, is a revolutionary gear-based CVT combining range, efficiency and ease of control. We have developed several versions of the same concept, tailored for different applications.

Operating Principle

Understanding how split rotation technology enables continuous variable transmission

There are two separate aspects to understand in the RatioZero. The first is how the rotation is split and reconstructed by the four-bar mechanism, and the second is how the ratio is changed by acting on the geometry. The combination of the two enables true continuous variable transmission with gear-like efficiency.

RatioZero

RatioZero /Chain

Our breakthrough continuously variable transmission technology that delivers unprecedented control and efficiency in compact packages. The version with internal chain is perfect for constant velocity, low to medium speeds applications, from micromobility to precision industrial applications.

Gear-like efficiency
Continuous ratio control
Low to medium torque, high range
Constant velocity system, low to medium speeds
Patent summary Learn more at ratiozero.com

Performance Highlights

Features and technical specifications that set new standards in transmission technology

90%+
Peak Efficiency (tbc)

Record-breaking efficiency for a CVT, achieved across the entire operating range

0:1 to 5:1
Ratio Range

Wide ratio coverage (on par with a cassette-type or gearbox transmission)

<45dB
Noise Level (tbc)

Enclosed transmission, clean and quiet operation for all environments

2x
Easy integration

Compact & modular form factor, straight and low power actuation

Sample Applications

The RatioZero /Chain adapts to diverse mechanical challenges

E-bike application
E-bike detail
CVT for e-bike

Integrated in the rear wheel or central hub, provides a new pedalling experience improving efficiency and range.

Mobility Hub Motors Automation
ATV transmission
Baja racing
ATV transmission

Helping SAE Baja teams achieve better performance: more efficient than conventional belt and pulley CVT.

Racing Driveline Innovation
RatioZero

RatioZero /Rod

Our breakthrough continuously variable transmission technology that delivers unprecedented control and efficiency in compact packages. The rod version is sturdier and with sligth kinematic differences making it the best choice for high-speed, high-torque applications, from tractors to robotics.

Gear-like efficiency
Continuous ratio control
High torque, high range
Compact system, medium to high speeds
Patent summary Learn more at ratiozero.com

Performance Highlights

Features and technical specifications that set new standards in transmission technology

90%+
Peak Efficiency (tbc)

Record-breaking efficiency for a CVT, achieved across the entire operating range

0:1 to 5:1
Ratio Range

Wide ratio coverage (on par with a cassette-type or gearbox transmission)

<45dB
Noise Level (tbc)

Enclosed transmission, clean and quiet operation for all environments

2x
Easy integration

Compact & modular form factor, straight and low power actuation

Sample Applications

High-efficiency CVT applications across multiple sectors

Robotics
Robot arm
Robotics

Compact, efficient assembly enables continuous ratio control with near-zero backlash for precision motion control.

Robotics Automation Precision
Tractors
Tractor PTO
Tractors

High torque, high reliability applications from driveline to Power Take Off - the tractor sector is a prominent use case.

Heavy-Duty PTO Cost reduction

"Quasi-CVT" Systems

Beyond the RatioZero, we offer clever "quasi-CVT" solutions that provide many benefits of continuous variable transmission in specialized applications where full CVT capability may not be required.

Operating Principle

How our quasi-CVT systems provide variable transmission benefits with simplified mechanisms

COMING SOON!
Quasi-CVT principle explanation

Our quasi-CVT systems allow a fixed number of ratios, but the engagement can be chosen continuously on the basis of a desired parameter. Such systems preserve some CVT benefits with greatly reduced size, complexity and cost.

Crown Drive & Other Solutions

Coming soon - innovative quasi-CVT solutions tailored for specific applications where simplified variable transmission provides optimal performance.

Technology Roadmap

Our development timeline for bringing revolutionary transmission technology to market

Q4 2025 - Q4 2026
Prototype Validation

Bench testing and model validation of RatioZero prototypes

Current
Q2 2026
Pilot Programs

Launch pilot programs with select OEM partners in micromobility and robotics

2027
Commercial Production

Scale manufacturing and begin commercial deliveries to industry partners