ARLINGTON — After nearly 15 years of planning, the City of Arlington officially opened its new bicycle pump track at Jensen Park on Wednesday, July 29. The City of Arlington, and community partners cut the ribbon on a new pump track Monday, Juley 29, at Jenson Park. Photo: Kienan Briscoe, Lynnwood TimesA pump track is a looping course featuring small hills, known as rollers, and banked turns, or berms. Arlington’s new 14,000 square foot Velosolutions pump track. Arlington’s new pump track put to test.