VPR™ RESISTANCE AIR BIKE
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.
PATENTED VPR™ TECHNOLOGY FOR ADJUSTABLE RESISTANCE
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.
TOTAL-BODY OUTPUT
Dual-action push-pull handlebars and a belt-driven system create a smooth, consistent feel through every stroke. Dual-position handles accommodate a wide range of athlete sizes, while the stable platform supports upper-body-only work, mixed-output intervals, and aggressive full-body efforts. The controlled resistance curve helps athletes maintain mechanics even as intensity rises.
COMMERCIAL-GRADE DESIGN
Built for daily use in demanding environments, the BIONIC BIKE XL features a heavy commercial construction and an industry-standard backlit console with familiar performance metrics. Quick-adjust ratchet seat positioning keeps transitions fast for group classes and interval work, while the wide resistance range makes it accessible for beginners and challenging for advanced athletes alike.




