The super-quiet, hydrodynamic Qubo Fluid features a resistance unit that is 100% more powerful than a conventional fluid resistance unit. This is achieved through a large flywheel fully submerged in oil, which allows for an automatic increase in resistance with rising speed, thus enabling a higher load on the braking unit. The resistance can be easily adjusted via the bike's gear shift. The frame of the Qubo adapts directly to the weight of the cyclist, their movements, and the wheel size through the exclusive Crono Zirkelsystem. Similar to riding on the road, energy is transmitted differently to the roller trainer, affecting the power output generated at the same speed. The high-quality frame is made from an innovative steel-plastic construction and is particularly stable. The enlarged Elastogel roller (45 mm in diameter) reduces tire wear by 20%, and the noise level is decreased by 50%. The newly developed Fast-Fixing attachment mechanism allows for easy and quick installation of the rear wheel onto the home trainer in just one step. All Elite rollers are pre-assembled and extremely easy to use. Training can begin just a few minutes after setup. After training, the Fluid can be easily folded away. It is suitable for all wheel sizes from 20 to 29 inches.