I recently, and happily, found out that certain sections of the Quabbin can be explored by bicycle! It was such a delight over the last few weeks to venture out, with my wife on one occasion, my friends on another, and once on my own.
On my solo venture, I had a wonderful encounter with a moose, 4 otter, and a number of loons!
There are four different spots to explore – see maps here: eastquabbike, northquabbike, quaboffresbike, quabparkbike
Enjoy!!