The long-vacant Brattle Pharmacy, 1043 Mass. Ave. in Arlington, has a banner on the Brattle Street side announcing that Quad Cycles and Team Quad will soon be there. Much like their old location in Arlington Heights, they'll be just a couple of blocks off the Minuteman Trail at an access point with stairs. Either shoulder your bike or get off at Ryder Street instead.
Updates: Ted Packard reminds me there's a ramp from the trail to Washington Street, just 50 narrow, bumpy, semi-paved yards from Brattle Street. And after driving by from the other direction, I see there are posters advertising the new tenants on three sides of the building.