The Omnium Portable Bike Trainer is compatible with a wide variety of bicycles on the market including road bikes, disc road bikes, cyclocross bikes, mountain bikes, and even folding bikes like a Brompton. Some bikes with require additional adapters to be purchased. Currently the Omnium comes stock with adapters for 12x100, 15x100, 15x110, and Quick Release.

Check out this helpful axle setup guide for more information.