Kayaking on Swan Pond River and Swan Pond - in West Dennis MA. Put in at Beach Road. in West Dennis MA. Paddle up to Swan. Pond and return. Estimated round trip. distance = 6+ miles. South Village.
There are 2 components to Bottom Bracket (BB) size, the BB shell width of the frame and the spindle length. Bottom Bracket shell width: The BB shell is the frame tube into which the BB threads. It will measure 68mm, 70mm or 73mm wide.
1 Road bike frame sizes are measured in centimeters.  Mountain bikes have a lower center of gravity to keep you on balance riding over roots, rocks, and mud on the trail. The center triangle is more compact, with the top tube angling down, away from the handlebars. Mountain bike frame sizes are measured in inches.