Zayn Malik Rolls Into Gigi Hadid's Apartment Building in a Wheelchair (PHOTO)

Zayn Malik showed up to his girlfriend's pad on 4 wheels ... just not the luxury wheels you'd expect.

The ex-One Direction singer was spotted going into Gigi Hadid's apartment in NYC on Saturday in a wheelchair. His rep tells us he injured his foot -- unclear how and where it happened -- but is fine.

He had a little help getting in the door, but it looks like the place is wheelchair accessible ... so that's good.