The output of just one biking human is equivalent to 3,000 miles per gallon, according to Bicycling Magazine.

EcoReps wrapped up its last event of the year with free bike tune-ups offered in the Academic Mall 11 a.m to 4 p.m on Tuesday, April 24. Several students with majors ranging from earth, environmental and geographical sciences to economics helped fix bikes and facilitate the event.

“We’re offering free tune-ups because bike maintenance is often unavailable to people, and is a great form of sustainable transportation,” said Olivia Walcott, a junior environmental science major. “If you have these really specific, simple skills you’re able to make components on your bike last much longer.”

Out of the approximately 50 bikes fixed and two unicycles, most were quick and sometimes dirty, including fixing brake pads, greasing chains and cleaning off the winter rust.

“As an NMU student who loves to bike everywhere, this event is super-duper amazing because a lot of people see bike maintenance as intimidating, but it’s honestly really simple,” said Dan Vanderveen, a senior outdoor recreation leadership and management major. “We’re here to spread the word, help people out and show them how it’s done.”

If bike components were not able to be fixed at the event, the bike owners were given specific instructions on how to fix the part on their own, or they were recommended to a repair shop.

“Sustainable transportation is really important, and Marquette is up-and-coming in developing more bike lanes,” Vanderveen said. “The more people biking the more power we have to change things for the better.”