Local Bike Clubs

Charles River Wheelmen - Cambridge, MA
CCB International - a New England racing team/club whose membership can frequently be found in amateur and pro-am cycling races throughout New England, and with which NSC maintains informal ties, and with whom we commonly share the road on any given Saturday
Essex County Velo - another north shore club with an active membership, some of whom also race competitively. ECV runs regularly-scheduled (bi-weekly) time trials over the same course. Worth doing at least once in your life.
Northeast Bicycle Club - a "bit" north shore (territory tends to be Burlington, and west), again with an emphasis on amateur racing
Nashoba Valley Pedalers - Acton, MA
Seven Hills Wheelmen - Auburn, MA
T-BONE - Tandem Bicylcists of New England
Yankee Pedalers - Connecticut and Western Massachusetts