Una rueda estaba un poco baja, así que paramos un momento antes de seguir.

Because rueda is a feminine noun in Spanish, so it takes the feminine article una.

• la rueda = the wheel / tyre
• una rueda = a wheel / tyre

Even though the word ends in -a, which often signals feminine gender, you still have to learn each noun with its article.

Baja agrees with rueda, which is feminine singular.

• rueda = feminine singular
• so the adjective must also be feminine singular: baja

If the noun were masculine, you would use bajo.
If it were plural, you would use bajas or bajos, depending on gender.

In this sentence, estar baja means something like to be low / underinflated / a bit flat when talking about a wheel or tyre.

Estaba is the imperfect, and it is used here to describe a background situation or state: the wheel was a little low.

Spanish often uses:

• imperfect for descriptions, ongoing states, and background information
• preterite for completed actions or events

So:

• Una rueda estaba un poco baja = description of the situation
• paramos = the completed action that happened because of that situation

Using estuvo would sound more like a completed event rather than a description of the condition.

Paramos is the preterite, because stopping is seen as a completed action: we stopped.

The sentence presents a sequence:

1. one wheel was a bit low
2. so we stopped
3. before continuing

That kind of completed action is exactly what the preterite is used for.

Parábamos would suggest something ongoing, repeated, or habitual, which does not fit as well here.

Un poco means a little or a bit.

So:

• estaba baja = it was low
• estaba un poco baja = it was a little low

It softens the statement and makes it less extreme. In context, it suggests the tyre was not completely flat, just somewhat low.

Así que means so, therefore, or so then.

It links a cause and a result:

• Una rueda estaba un poco baja = cause
• así que paramos = result

It is very common in everyday Spanish for connecting ideas in a natural way.

You can think of it as similar to:

• so
• that’s why
• therefore

depending on context.

Yes, often you could, but the structure changes slightly.

• Una rueda estaba un poco baja, así que paramos...
• Una rueda estaba un poco baja; por eso paramos...

Both are natural and both express consequence.

A rough difference:

• así que often feels like a simple connector meaning so
• por eso is more literally because of that / that’s why

In this sentence, así que sounds very natural.

Here un momento means for a moment or for a short while, and Spanish often uses a bare time expression without a preposition in this kind of sentence.

So:

• paramos un momento = we stopped for a moment

Using por un momento is possible in some contexts, but it often has a different nuance and is less natural here. In this sentence, simple un momento is the usual choice.

After antes de, Spanish uses an infinitive when the subject is the same.

Here, the people who stopped are also the ones continuing, so Spanish uses:

• antes de seguir = before continuing

This is a very common structure:

• antes de comer = before eating
• antes de salir = before leaving
• antes de dormir = before sleeping

If a different subject followed, Spanish would normally use antes de que + subjunctive.

Because it comes after the preposition de in the structure antes de + infinitive.

In Spanish, when a verb follows a preposition and there is no new subject introduced, the verb usually stays in the infinitive:

• después de comer
• sin hablar
• antes de seguir

So seguir is not conjugated here because it is part of that fixed pattern.

Here seguir means to continue or to carry on.

In this sentence, it implies continuing the trip, journey, or activity that had been interrupted.

So antes de seguir means:

• before continuing
• before carrying on
• before going on

It can be used that way in everyday context, but literally rueda means wheel.

Depending on context, Spanish speakers may use:

• rueda = wheel, and sometimes tyre in everyday speech
• neumático = tyre
• llanta = rim, though usage varies by region

In Spain, neumático is the precise word for tyre, but rueda is very common in normal conversation when the meaning is obvious.

Because Spanish usually leaves out subject pronouns when the verb ending already shows who is doing the action.

• paramos already means we stopped

So nosotros is unnecessary unless you want emphasis, contrast, or clarity.

For example:

• paramos = we stopped
• nosotros paramos = we stopped, especially emphasizing we

In this sentence, the pronoun is not needed.

In writing, paramos can look the same as either:

• present: we stop
• preterite: we stopped

The meaning comes from context.

In this sentence, the rest of the sentence clearly places it in the past:

• estaba = was
• paramos = stopped

So here it is definitely preterite, not present.

Because así que connects two clauses, and a comma is commonly used before it in Spanish.

The sentence has two main parts:

• Una rueda estaba un poco baja
• así que paramos un momento antes de seguir

The comma helps separate the cause from the consequence. This punctuation is very natural and standard.