New data from Strava, the fitness tracking app used by 68 million global users, shows that several U.S. cities saw significant year-over-year growth in both bike trips and cyclists in much of 2020. Among the six U.S. cities for which Strava provided data, Houston and Los Angeles, two sprawling metropolises where just .5% and 1% of the respective populations biked to work in pre-pandemic times, stand out. In Houston, the total volume of cycling trips ... was 138% higher in May 2020 than in May 2019. In Los Angeles, the jump was 93%. Unlike their peers, these two places also saw cycling increases in April, the first full month of widespread stay-at-home order and economic shutdowns. Yet other major cities saw more people pedaling this spring and summer. After a drop in trips in April, New York City saw a steady rise in cycling in the ensuing months, with nearly 80% year-over-year growth in trips for July. Chicago saw significant, though more modest, increases, with a 34% bump that same month. Research by the U.S. Centers for Disease Control comparing Strava users who track their bike and walking commutes on the app to U.S. Census Bureau commute data has found that Strava is a reliable indicator of how the broader population moves. On Wednesday, the company announced that a web platform that aggregates, de-identifies and analyzes Strava trips on foot or bike is now free for use by urban planners, city governments and street safety advocates who apply.