Bay Circuit Trail?

[jim_p]

I just moved to Metrowest (Natick, to be precise) and I'm always on the lookout for trails to ride. There doesn't seem to be very much around me, but one thing I came across online is the Bay Circuit Trail. It looks wonderful, and supposedly I can pick it up only a short distance away in Ashland. Trouble is, the BCT site seems targeted mainly at hikers, and I can't seem to find any definitive information anywhere as to which activities are permitted on which portions of the trail. One pointer to the site said that biking is permitted on "some, but not all" sections of the trail, but there's no info on just which sections these are!

Anybody have any more information?

Thanks!