I had to attend a meeting today in Lowell from 9:30-4:00, so I biked there. It was 25F when I left home at 8 am but sunny and beautiful. I rode the Bridgestone MTB with studded tires and was glad I did - some icy patches on Rt. 4 in Billerica. Got to ride the Bruce Freeman Rail Trail for the first time. On the way there, I went north on Rt 4 and did about 2 miles of the trail, but on the way home I did the whole trail (6.8 miles) and rode back on Rt. 225. 14 miles there, 19 miles home.