"Ezek modern és hatékony biciklik."

Translation: These are modern and efficient bikes.

[NickyHawki]

Wouldn't "These bikes are modern and efficient" be okay?

[RyagonIV]

No, that is backwards. The original sentence is talking about what "these" are, not what "these bicycles" are like.

[Yet1970]

Bikes is also correct

[clairelanc3]

Since when isn't "bike"accepted?

[RyagonIV]

Since this course launched, I guess. :)
Please keep reporting.

[-__Jacob__-]

Would "ezek a" be correct here too?

[96314081311257]

No.

ezek a modern biciklik = these modern bikes (or: these are the modern bikes)