Велосипедний замок є на рамі.

Велосипедний замок literally means bicycle lock.

• велосипед = bicycle
• велосипедний = bicycle / bike-related (an adjective formed from велосипед)
• замок = lock

So Ukrainian uses an adjective + noun structure here, where English often uses a noun + noun structure: bicycle lock.

In Ukrainian, it is very common to turn a noun into an adjective when it modifies another noun.

So instead of something like bicycle lock with two nouns, Ukrainian usually prefers:

• велосипедний замок = bicycle lock

Using велосипед directly before замок would not sound natural in standard Ukrainian.

That is a very common question. In Ukrainian, the present-tense verb to be is often omitted:

• Велосипедний замок на рамі. = The bicycle lock is on the frame.

But є can still be used, especially to express existence, presence, or a slightly more explicit is/there is sense:

• Велосипедний замок є на рамі.

So this sentence is grammatical, but in everyday speech many speakers would also simply say:

• Велосипедний замок на рамі.

рамі is the locative singular form of рама.

After the preposition на when it means on in a location sense, Ukrainian often uses the locative case:

• рама = frame (dictionary form, nominative)
• на рамі = on the frame

So the ending changes because the noun is after a preposition showing location.

Because на can mean different things depending on the situation.

Here it means on in a static location:

• на рамі = on the frame

With location, на commonly takes the locative case.

Compare that with motion toward a surface, where Ukrainian often uses the accusative:

• класти на раму = to put onto the frame

So:

• на рамі = location
• на раму = movement onto

Yes. Замок can mean either lock or castle.

Usually the meaning is clear from context. In this sentence, because of велосипедний and на рамі, it clearly means lock, not castle.

A useful extra detail: the two meanings are also distinguished by stress in speech:

• замо́к = lock
• за́мок = castle

But in normal writing, both are spelled the same.

Yes. Ukrainian word order is quite flexible, and changing it can shift the emphasis.

For example:

• Велосипедний замок є на рамі. = focuses on the bicycle lock
• На рамі є велосипедний замок. = focuses more on what is on the frame

Both are grammatical. Ukrainian often uses word order to highlight old vs. new information, emphasis, or style.

Because Ukrainian does not have articles like a / an / the.

So a phrase like велосипедний замок can mean:

• a bicycle lock
• the bicycle lock

The exact meaning depends on context.

English requires an article, but Ukrainian usually leaves that information to context.

A natural stress pattern is:

велосипе́дний замо́к є на ра́мі

Approximate pronunciation for an English speaker:

veh-loh-sy-PEHD-nyy zah-MOK yeh na RAH-mee

A few quick notes:

• є sounds roughly like ye
• и in велосипедний is not exactly English ee or ih; it is a Ukrainian vowel of its own
• г in Ukrainian is usually softer than English g

Yes, it is correct, but in everyday speech many speakers would probably say a slightly shorter version:

• Велосипедний замок на рамі.

If they want to sound more explicitly existential, they might say:

• На рамі є велосипедний замок.

So your sentence is fine, but it is useful to know that Ukrainian often prefers either omitting є or moving the location phrase first, depending on what is being emphasized.