Min forsikring dækker ikke skaden, hvis cyklen ikke er låst.

Because forsikring is a common-gender noun in Danish: en forsikring. For singular common-gender nouns, the possessive is min.

• en forsikring → min forsikring
• et hus → mit hus
• plural nouns → mine

So the form depends on the gender and number of the noun, not on the speaker.

Here, forsikring means insurance in the sense of your insurance policy or insurance coverage. In context, min forsikring is most naturally understood as my insurance policy / my insurer’s coverage.

So in this sentence, it is not talking about the abstract concept of insurance, but about the insurance that is supposed to pay for damage.

Dækker is the present tense of dække, which literally means to cover. In insurance language, dække means to cover financially, to pay for, or to compensate for.

So Min forsikring dækker ikke skaden means that the insurance will not pay for that damage.

Grammatically:

• infinitive: at dække
• present tense: dækker
• past tense: dækkede
• past participle: dækket

Skaden is the definite form of skade.

• en skade = a damage / an injury / a loss
• skaden = the damage

Danish often uses the definite form when referring to a specific damage or loss that is understood from the situation. In an insurance sentence, skaden means the damage in question or the claim-related damage being discussed.

So it is not just any damage in general, but the relevant damage to the bicycle.

No. It is not a double negative in the English sense. Each ikke belongs to a different clause.

• Min forsikring dækker ikke skaden
  = the insurance does not cover the damage

• hvis cyklen ikke er låst
  = if the bicycle is not locked

So one ikke negates the main clause, and the other negates the condition clause. They are doing separate jobs.

This is a very important Danish grammar point.

In the main clause, Danish follows the V2 rule: the finite verb usually comes in the second position.

• Min forsikring dækker ikke skaden

Here:

• subject: Min forsikring
• finite verb: dækker
• negation: ikke

So the verb comes before ikke.

In the subordinate clause introduced by hvis, Danish does not use V2 word order. In subordinate clauses, ikke usually comes before the finite verb:

• hvis cyklen ikke er låst

Here:

• subject: cyklen
• negation: ikke
• finite verb: er

So this contrast is normal:

• main clause: verb + ikke
• subordinate clause: ikke + verb

Hvis means if, and it is used for a condition.

That fits this sentence because the meaning is conditional: the insurance does not cover the damage if the bike is not locked.

Når usually means when, often for something expected, repeated, or certain to happen in the relevant context.

Compare:

• Hvis cyklen ikke er låst = If the bike is not locked
• Når cyklen ikke er låst = When the bike is not locked

In insurance and rule-based statements, hvis is usually the natural choice, because the sentence gives a condition for coverage.

Er låst means is locked.

This is built with:

• er = present tense of at være (to be)
• låst = past participle of at låse (to lock)

Together they describe the state of the bicycle: whether it is locked or not.

So:

• cyklen er låst = the bike is locked
• cyklen ikke er låst = the bike is not locked

You would not use låser here, because låser means locks in the active sense, as in the person locks the bike.

Cyklen is the definite form: the bicycle.

In this context, the bicycle is already understood as a specific one — the bicycle connected with the insurance claim or the person speaking. Danish often uses the definite form when the thing is identifiable from context.

So:

• en cykel = a bicycle (any bicycle, not yet identified)
• cyklen = the bicycle (the relevant bicycle)

Even though English might sometimes say if your bike isn’t locked, Danish can simply say hvis cyklen ikke er låst if the bicycle is already understood.

Yes, absolutely. That is a perfectly correct alternative.

It means the same thing, but now the if-clause comes first:

• Hvis cyklen ikke er låst, dækker min forsikring ikke skaden.

Notice what happens in the main clause after the fronted subordinate clause:

• dækker min forsikring ... not
• min forsikring dækker ...

That inversion happens because Danish still keeps the finite verb in second position in the main clause.

So both are correct:

• Min forsikring dækker ikke skaden, hvis cyklen ikke er låst.
• Hvis cyklen ikke er låst, dækker min forsikring ikke skaden.

In everyday Danish, skade often means damage, harm, or injury, depending on context. In insurance language, it can also refer more specifically to the damage/loss that is being claimed.

So in this sentence, skaden is best understood as the damage that the insurance would otherwise cover. It is not necessarily limited to one exact English word; the insurance context narrows the meaning.

Yes. In ordinary Danish, min forsikring can sometimes refer loosely to either:

• my insurance policy / my insurance coverage
• my insurance company / insurer

In this sentence, the practical meaning is: my insurance will not cover the damage. English also does something similar, since people say my insurance won’t cover it even though technically a company or policy is doing the covering.

So the phrase is natural and idiomatic, even if the exact reference is slightly broad.

Yes, it is natural Danish. It sounds like a normal rule or policy statement.

A Dane might also say:

• Hvis cyklen ikke er låst, dækker min forsikring ikke skaden.
• Min forsikring dækker ikke skader, hvis cyklen ikke er låst.

The second version with skader could sound a bit more general, as in a general policy rule. But your original sentence is completely natural and correct.