Learn Spanish (Spain): ¿El asiento de la bicicleta es tan cómodo como el sofá? - Is the bicycle seat as comfortable as the sofa?

In Spanish, to compare two things that are equal, you use tan + [adjective] + como. Here, tan acts like the first "as" and como acts like the second "as". By putting the adjective cómodo (comfortable) between them, you get tan cómodo como (as comfortable as).

Why is the adjective cómodo masculine if it is right next to la bicicleta?

The adjective describes the main subject of the sentence, which is el asiento (the seat). Because asiento is a masculine, singular noun, the adjective must be cómodo. Even though la bicicleta is feminine, it just tells us which seat we are talking about.

Why is it el sofá? Doesn't the 'a' at the end make it feminine?

Sofá is one of the classic rule-breakers in Spanish! Even though it ends in 'a', it is a masculine noun. You must always use masculine articles with it, like el instead of la.

Why do we say el asiento de la bicicleta instead of translating "bicycle seat" directly?

In English, we often put two nouns together to make a new concept (like "bicycle" + "seat"). In Spanish, you cannot stack nouns this way. Instead, you have to use de (of) to connect them, literally saying "the seat of the bicycle".