NEW YORK (CBSNewYork) — Thousands of cyclists are peddling hard in New York this weekend for an important cause.

Cycle for Survival is a national movement to beat rare cancers. The indoor cycling fundraisers have generated $75 million so far for Memorial Sloan Kettering Cancer Center.

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“It’s a large group of people all working together for rare cancers,” Dr. Ross Levine of Memorial Sloan Kettering told CBS2’s Andrea Grymes. “These cancers don’t have a voice, unlike the more common cancers, which have large groups that raise money and work together. This event, the founders, everybody involved, the 20,000 riders are all working together to give these rare cancers a voice and the support they desperately need to develop new treatments.”

Cancer survivor David Munczinski is among those participating.

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“The amazing thing about Cycle for Survival is that absolutely anyone can participate,” he said. “And there are people that are in treatment, and they can come out and they can form a team or join a team and they can ride. Or anyone can come out and just support and cheer, and that’s what’s so great about it. And I think that’s what has allowed it to be this movement across the country now is that open participation.”

Levine said 100 percent of the money raised goes toward research, and it’s all distributed within six months.

To watch the full interview, click on the video above.

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For more information on Cycle for Suvival, click here.