STEPR BIONIC BIKE XL VPR™

The STEPR BIONIC BIKE XL takes the traditional air bike and pushes it forward with VPR™ technology and refined ergonomics. Built to adapt to athlete size, strength, and intent, it delivers smooth, scalable resistance for everything from rehab work to max-effort conditioning. The result is a bike that responds instantly to output and supports true total-body training. At the core of the BIONIC BIKE XL is VPR™, a patented air-resistance system that provides over 100 virtual levels of load in real time. Resistance scales naturally with effort, allowing athletes to move seamlessly between low-cadence strength endurance, steady aerobic work, and high-intensity sprint intervals. From exceptionally light resistance to heavy, grinding output, the load meets the athlete without manual adjustments.

What is a Air Bike?

What an air bike is

An air bike (or “fan bike”) uses a large front fan for resistance: the harder you pedal and push the moving handles, the more air the fan has to move, so resistance scales infinitely with effort. There are no settings to change — you simply work harder. Because arms and legs drive at once, air bikes deliver full-body, low-impact conditioning that is a staple of CrossFit and HYROX training.

Who it’s for

Anyone who wants brutal, joint-friendly cardio in a compact footprint — intervals, sprints, and calorie-target finishers. Belt-drive bikes run quieter and need less maintenance; chain-drive bikes cost less. Prefer a legs-only, cycling-style ride? A BikeErg is the closer fit.

How it compares