Pyöräkellarissa on nyt enemmän tilaa, koska vanhat pyörät vietiin pois.

Pyöräkellarissa is a compound + case ending:

• pyörä = bicycle / bike
• kellari = cellar, basement
• pyöräkellari = bike cellar / bicycle storage room
• -ssa = in (the inessive case)

So pyöräkellarissa literally means in the bike cellar.

Finnish makes compounds very freely, so a learner will often see long words like this that are really just smaller words joined together.

Because enemmän normally takes the following noun in the partitive.

So:

• tila = space, room
• tilaa = partitive singular of tila

After quantity/comparison words like these, Finnish usually uses the partitive:

• paljon aikaa = a lot of time
• vähän rahaa = a little money
• enemmän tilaa = more space

So enemmän tilaa is the natural form, not enemmän tila.

Because tila here means space/room as an uncountable idea, like English space.

You usually do not count it as separate units in this kind of sentence. So Finnish uses singular partitive:

• on tilaa = there is space
• on enemmän tilaa = there is more space

This works much like English space rather than spaces.

This is a very common Finnish sentence type: an existential sentence.

Structure-wise, Finnish often says something like:

• [place] + on + [something]

So:

• Pyöräkellarissa on tilaa = In the bike cellar, there is space.

Finnish does not need a dummy subject like English there. English says there is, but Finnish simply says on.

So Pyöräkellarissa on nyt enemmän tilaa is literally closer to:

• In the bike cellar is now more space.

But the natural English translation is of course There is now more space in the bike cellar.

Nyt means now.

It shows that the situation has changed:

• before, there was less space
• now, there is more space

So it connects naturally with the second clause about the old bikes being removed.

In Finnish, nyt can move around somewhat depending on emphasis, for example:

• Pyöräkellarissa on nyt enemmän tilaa
• Nyt pyöräkellarissa on enemmän tilaa

Both are possible, but the original sounds very natural.

Koska means because.

It introduces the reason:

• Pyöräkellarissa on nyt enemmän tilaa = there is now more space in the bike cellar
• koska vanhat pyörät vietiin pois = because the old bikes were taken away

So the second clause explains why there is more space now.

A learner should also know that koska can mean when in some contexts, but here it clearly means because.

Vanhat pyörät means the old bikes.

Both words are in the nominative plural:

• vanha → vanhat
• pyörä → pyörät

The adjective agrees with the noun in number and case, so if the noun is plural, the adjective is plural too.

This is one of the most important Finnish patterns:

• vanha pyörä = an old bike
• vanhat pyörät = old bikes

Vietiin is the past passive of viedä (to take, to bring, depending on context).

Here it means:

• vietiin = were taken

So:

• vanhat pyörät vietiin pois = the old bikes were taken away

This Finnish passive is very common when the doer is unknown, unimportant, or not mentioned.

Compare:

• He veivät vanhat pyörät pois. = They took the old bikes away.
• Vanhat pyörät vietiin pois. = The old bikes were taken away.

Finnish uses this passive a lot more naturally than English learners may expect.

This is a very common point of confusion.

In Finnish, with a passive verb like vietiin, the object can appear in the nominative when it is a total object. Here the idea is that the old bikes were removed completely, as a whole set.

So:

• vanhat pyörät vietiin pois = the old bikes were taken away

If the action were incomplete or indefinite, Finnish would more likely use the partitive.

Very roughly:

• nominative/plural here = the bikes were taken away completely
• partitive would suggest partial/incomplete action

This is part of the bigger Finnish object case system, which often depends on whether the action is seen as complete or incomplete.

Pois means away.

So:

• viedä pois = to take away, remove

Without pois, viedä would still mean take/bring, but pois makes the idea of removal much clearer.

Compare:

• Pyörät vietiin. = The bikes were taken.
• Pyörät vietiin pois. = The bikes were taken away.

In this sentence, pois is very natural because the point is that the old bikes are no longer there, which is why there is more space.

Finnish word order is fairly flexible, though some orders sound more natural in context than others.

The original sentence is very natural:

• Pyöräkellarissa on nyt enemmän tilaa, koska vanhat pyörät vietiin pois.

But you could also say things like:

• Nyt pyöräkellarissa on enemmän tilaa, koska vanhat pyörät vietiin pois.
• Koska vanhat pyörät vietiin pois, pyöräkellarissa on nyt enemmän tilaa.

The difference is mostly about focus and information flow, not basic meaning.

Finnish often puts:

• known/background information first
• the most important new information later

So in the original, the sentence starts with the location pyöräkellarissa, then tells you what is true there now.

Yes. Very much so.

Finnish forms compounds constantly, and they are often written as one word. So a native English speaker should get used to looking for familiar pieces inside long words.

For example:

• pyörävarasto = bike storage
• autotalli = garage
• kirjahylly = bookshelf
• uimahalli = swimming hall / indoor pool

So pyöräkellari is exactly the kind of compound Finnish likes to make: a noun telling you what kind of cellar it is.

Yes, and in practice that is often the same idea.

Finnish does not use articles like the or a, so vanhat pyörät can be understood from context as:

• old bikes
• the old bikes

In this sentence, English would usually say the old bikes, because the context suggests a specific set of bikes in the bike cellar.

So the Finnish form itself does not mark the, but the meaning often comes from the situation.