It doesn’t, at least not ergonomically. Recumbents are as comfortable as they look. I once did 80km on one, having not got on a bike for months, and felt not the slightest aches or discomfort at the end. A complete revelation.
The issues with recumbents are elsewhere: low visibility for motor traffic, difficulty of balance at very low speeds. There’s also a small risk of knee inflammation if you inadvertently pedal too hard, since the force you can put into pedalling is not limited to body weight like on an upright bike.
It doesn’t, at least not ergonomically. Recumbents are as comfortable as they look. I once did 80km on one, having not got on a bike for months, and felt not the slightest aches or discomfort at the end. A complete revelation.
The issues with recumbents are elsewhere: low visibility for motor traffic, difficulty of balance at very low speeds. There’s also a small risk of knee inflammation if you inadvertently pedal too hard, since the force you can put into pedalling is not limited to body weight like on an upright bike.