Mash SF is a cycling group in San Francisco, and along with iconic photographer Massan, they have put together this eclectic group of pictures that capture their love for bicycles.

The Mash SF group can be seen riding around the streets at night. The photos show their collection of bikes and even some awkward tan lines from all the time they spend cycling in the sun.

Check out the gallery above to see Mash SF’s collaboration with Massan.