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.
To summarize: When you specify your bottom bracket, you need to know: 1  The threading of your frame: BSC, Italian, French (or Swiss). 2  The taper of your cranks: JIS or ISO. 3  The length of your spindle in millimeters, depending on the type of crank you use.