The Plan: https://ridewithgps.com/routes/11671831 Very cold day Ken led Curt, Dom, Dr. Frank, Gene Ho, Dr. Joel Bauman, Julie (rode in, went home in Westford), Marc, me, Rick Lawrence, Robin Frain. Jack D joined en route Up West St on way home I felt my rear shifter "lock up" and got off bike quickly before it jammed. Turns out it wasn't jammed, but meanwhile I was off the bike and it was too steep to remount. Gene was behind me and stayed with me until I walked up to a less steep place and remounted. But by this time the rest of the group was ahead and I could not catch up until well after Strawberry Hill road downhill. Thanks Gene (And Marc Baskin who came back to see what the problem was.) Speed 13.9 (actually was 14.0 until the last 100 yards) PHONE was clean - no straight lines 30.2 miles 13.9 mph