Equinox Bethesda will have 200 bikes set up for Sunday’s Cycle for Survival.

The minimum requirements for participating in Cycle for Survival (Cycleforsurvival.org), the national fundraiser for Memorial Sloan-Kettering Cancer Center, are a half-hour on a stationary bike and $125 in donations. Last year, Dana Goozh of Rockville, Md., did even better: nearly $14,000 in donations and hours of cycling.

“If we’re there, let’s do it the whole time,” says Goozh, 41, who’s ready to ride again this Sunday, when the event returns to Equinox Bethesda. This year, she’s going for Cycle Extreme, a category for solo participants willing to commit to four hours and raising $4,000.

For Goozh, who rides in memory of her aunt, that’s an invitation rather than a challenge. She’s already raised more than twice that amount, and she’s not worried about pedaling all day: “With the high of being there, you can get through anything.”