Hey don't know if any of the locals have seen this one yet. Stopped by earlier today, and it looked pretty interesting. It's offset next to a small garden on Kent Ave, just a few blocks from the Williamsburg Bridge.

Very small track, but it looks like it could be a fun place to ride without getting bitten up by mosquitos and such in Cunningham Park.

Brooklyn Bike Park | Community MTB Park

I'll probably go and try it out one weekend and see how it is.

One of the employees said that they rent out the bikes to anyone over 16... Free to ride if you have your own equipment.