It’s not every day that you can ride a bicycle on a rooftop–but farmers and volunteer green thumbs at the Eagle Street Rooftop Farm were offered that unusual opportunity yesterday during the weekly 2pm FREE workshop with Times UP! , New York’s bicycle-friendly environmental direct-action group.  An all-volunteer run organization that dishes out multiple free workshops a week, Times UP! is known for its bicycle-focused organizing, including the group ride “Critical Mass.”  Mechanics from Times UP! brought two bikes up to the farm: a long cargo bike perfect for carrying pounds of fresh tomatoes and peppers, and a bicycle ready to be deconstructed and explained for the benefit of Eagle Street’s green thumbs.  An hour later, wiser on the skills of flat tire-fixing, ball-bearing adjusting, and brake-tightening, the farmers went back to farming (finishing up sowing seed-saved vetch between rows of kale) and Time’s UP! mechanics rode back to their work space under the Williamsburg Bridge.  Next time we farmers need to borrow a cup of sugar–or fix up a new cargo bike to transport compost back to the farm–we know who to visit!