hi folks, I'm looking for a few loops where I can ride at a pretty hard pace for a couple of hours without stopping. traffic lights, stop signs, and other impediments are what I need to avoid. residential neighborhoods are not ideal.
one I've done before is around the Brookline Golf Course, which is about 4 miles. do you know of others? they are harder to find than you might think!
(btw, I live south of the city in Westwood, so loops that are north and west are less useful)