What does frame type mean for CUBE bikes? CUBE city bikes and e-bikes distinguish between women's and men's frames: women's frames have a low step-through frame (Easy Entry: EE) for easier mounting and dismounting, while men's frames have a high top tube for added strength. Thanks to modern technologies, both types are equally stable. The trapezoid frame offers a middle ground with a slightly sloping top tube. Sporty and practical, it's suitable for those who want convenience without a completely low step-through frame. For sporty bikes, such as road bikes and mountain bikes, the distinction is less significant. Here, performance, sizing, and adjustability are key. CUBE offers models for everyone, with unisex geometry.