I find it extremely difficult to find cycling bits and bobs down here in Tokyo. Especially clothing being a 6'5 clyde. BUT, my company is sending me to Boston for some training. I will only have a few days in town and need to find a shop with a decent inventory of stuff. Can anyone recommend an LBS maybe in Boston or vicinity. I will be staying in Beverly to be exact. But, do not mind commuting to find somewhere I can go to get what I need.
If you have time to wonder around there are several interesting bike shops around Boston University and Harvard, Harris Cyclery in West Newton is a good stop if not for anything other than meeting everyone's favorite Bike Guru, Sheldon Brown
As far as shops with inventory I second the Wheelworks recamendation (they have two shops) also Harris cyclery in Newton http://www.sheldonbrown.com/harris/index.html
As you will be staying in my town I will also tell you about the two worthwhile bike shops on the North Shore: Harborside cycle (in Gloucester) and Seaside cycle (in Manchester by the sea). They are smaller shops but excelent.