Le pneu arrière est presque dégonflé, mais le guidon est encore solide.

In French, descriptive adjectives like arrière often come after the noun.

• un pneu arrière = a rear tire
• une roue arrière = a rear wheel

This is very common with positional adjectives such as:

• avant = front
• arrière = rear
• gauche = left
• droit(e) = right

So le pneu arrière is the normal French word order.

Pneu is short for pneumatique, and it means tire.

So:

• le pneu = the tire
• la roue = the wheel

That distinction matters. In English, learners sometimes confuse wheel and tire, but in French they are different words just as they are in careful English.

Here, dégonflé is being used like an adjective after être.

• est dégonflé = is deflated / is flat-ish / has lost air

This is a very common French structure:

• La porte est fermée = The door is closed
• Le pneu est dégonflé = The tire is deflated

By contrast:

• Le pneu se dégonfle = The tire is going flat / is deflating

So the sentence describes the tire’s current state, not the process happening in real time.

Because it agrees with le pneu, which is:

• masculine
• singular

So the adjective/participle takes the masculine singular form:

• dégonflé for le pneu
• dégonflée for la roue
• dégonflés for plural masculine
• dégonflées for plural feminine

Examples:

• Le pneu est dégonflé.
• La roue est dégonflée.

Presque means almost or nearly.

It modifies dégonflé:

• presque dégonflé = almost flat / nearly deflated

So the tire is not completely flat, but it is close.

Word order is normal here:

• est presque dégonflé

French often places adverbs like presque before the adjective or participle they modify.

Here encore means still, not again.

• le guidon est encore solide = the handlebar is still solid

Encore can mean different things depending on context:

• again: Fais-le encore. = Do it again.
• still: Il est encore là. = He is still there.

In this sentence, still is the only meaning that fits naturally.

Solide here means something like:

• solid
• sturdy
• firm
• structurally sound

For a guidon, it suggests the handlebar is still in good condition and not loose, weak, or damaged.

It does not usually mean hard in the sense of texture. French dur would be closer to hard, but solide is the better choice for something mechanically sturdy.

Yes, English often says handlebars in the plural, but French commonly uses the singular le guidon.

So:

• le guidon = the handlebar / handlebars

This is one of those places where French and English package the idea differently. Even though the object has two sides, French treats it as a single unit.

Because both pneu and guidon are masculine singular nouns.

• le pneu
• le guidon

French nouns have grammatical gender, and the article must match.

You just have to learn the gender with the noun:

• un pneu
• un guidon

If they were feminine, you would use la instead.

Sometimes, but not with exactly the same nuance.

• dégonflé = deflated / lacking air
• à plat or crevé often suggests a flat tire more strongly

Examples:

• Le pneu est dégonflé. = The tire has lost air / is deflated.
• Le pneu est à plat. = The tire is flat.
• Le pneu est crevé. = The tire is punctured / flat because of damage.

So presque dégonflé works well when the tire is low on air but not totally flat.

French usually expresses that idea with a noun + adjective structure rather than a single compound noun.

So instead of building one long noun, French says:

• le pneu arrière
• la roue avant
• la porte gauche

This is very normal in French. English often prefers compact combinations like rear tire, while French often keeps the noun and descriptive word separate.

Yes, in this sentence mais works very much like English but.

It connects two contrasting ideas:

• the rear tire is almost deflated,
• but the handlebar is still solid.

So mais is a straightforward contrast word here.

A careful pronunciation would be roughly:

Le pneu arrière est presque dégonflé, mais le guidon est encore solide.

A few useful notes:

• pneu has a tricky sound for English speakers: it is one syllable, approximately pnuh with a rounded vowel.
• arrière sounds like a-ryair
• dégonflé ends with an ay sound: day-gon-flay
• guidon sounds roughly like gee-don with a nasal vowel at the end
• encore here is usually ahn-kor
• solide is soh-leed

Also, in normal speech, est encore may flow together smoothly, though learners do not need to force a liaison everywhere.