bicycle parking rack vs bicycle rack

bicycle parking rack and bicycle rack both are nouns.

Word	Noun	Adjective	Verb	Adverb
bicycle parking rack	Yes	No	No	No
bicycle rack	Yes	No	No	No

As nouns, bicycle parking rack and bicycle rack are synonyms defined as:

Other synonyms of bicycle parking rack include bicycle stand, bike parking rack, bike rack, bike stand.

bicycle parking rack (noun)	bicycle rack (noun)
a rack for parking bicycles	a rack for parking bicycles