This article originally appeared on CultureMap.

As local cyclists are painfully aware, as lovely as a 10-speed or mountain bike spin on a sunny day can be, the ride can come with serious risks — even fatal. A recently released report confirms that imminent danger, as Houston is listed as the sixth-most dangerous city for cyclists in the nation.

The study comes courtesy of Your Local Security, which has ranked the Safest U.S. Cities for Cyclists. To determine the safest and least safe US cities for bikers, the organization gathered metrics and data from Census.gov, the National Highway Traffic Safety Administration, People for Bikes, and The League of American Bicyclists to find the percentage of bike commuters, number of fatal crashes, amount of bike lanes, and what bike laws are in place or in the works in each city. Cities included had populations of 20,000 or more. A formula using a 100-point scale was then created, with fatal bike crashes rated the highest determining factor.

Houston ranks just behind Los Angeles (No. 1) and New York City (No. 2) as the most dangerous large American city for cyclists, with small town Fargo, North Dakota ahead of Houston at No. 5. The report finds Davis, California as the safest city in America for bikers — and several California cities in the top 10.

Read more at CultureMap.