What Our Gearhead® Experts Are Saying: "The Piston ION makes loading my E-bike so much easier. The ramp saves my back, the zero-frame-contact design protects my paint, and it’s solid enough for off-road trips."For riders who push boundaries, the Kuat Piston ION delivers strength, versatility, and confidence. Designed to handle up to 100 pounds per tray, it’s perfect for transporting heavy E-bikes without stressing about frame damage. The included aluminum ramp makes loading effortless, while the FastFit wheel chock system adjusts quickly to a range of tire sizes. From city streets to remote trailheads, the Piston ION is RV-compatible, off-road approved, and ready to carry everything from slim road wheels to 4. 8-inch fat tires. With its fender-friendly design, rugged hitch compatibility, and zero-frame-contact security, this rack is built to match your biggest adventures.