You're almost to the bike thing! It's back in the building where you got the Jump, and if you have the Speed you can get there. Sorry the lighting is so poor and it's hard to tell (I literally ran this down to the wire of the jam grace period deadline), but there's a platform beyond the fall down to Jump. If you do go back for it, hope that you have a good time with the bike! It's definitely what got the vast majority of the attention and I'm quite proud of how it came out! ^_^