Whats the general consensus on the Rondo Ruut CF2s 1x setup performance in mixed terrain, considering its unique blend of aero, comfort, and versatility features - do users find the single chainring to be restrictive or adequately supported by the wide-range cassette, particularly when tackling long, steep climbs or high-speed descents with varying levels of technicality? How do owners weigh the benefits of reduced mechanical complexity against potential drawbacks in terms of gear range and cadence control, especially for those accustomed to more traditional 2x or 3x drivetrain configurations? Have any users experimented with aftermarket wheel upgrades or different tire combinations to further optimize the Ruut CF2s performance and what were their findings? Are there any notable differences in how the bike handles under different loads or with varying rider positions, such as when switching from a more aggressive, aerodynamic setup to a more upright, comfort-oriented configuration?