Can you rent bikes near Delaware Park ?

Here are all amenities available as per the parks website (1) 18 hole Golf Course (3) Baseball/Softball Diamonds (6) Football/Soccer/Rugby Fields (2) Lawn Bowling Courts (17) Tennis Courts (4) Basketball Courts (3) Playgrounds (17) Picnic Tables (1) Picnic Shelter

If you can't find a bike on Elmwood there plenty of places to rent on the Buffalo State College campus

Yes. On Elmwood Avenue