More than 1,000 cyclists -- from children to grandparents to hard-core competitive racers -- are expected to converge on the Fairfield County Hunt Club Saturday for the Connecticut Challenge, a benefit for cancer-survivorship programs.

The event features rides for five separate levels of fitness and competitiveness, according to the event website, from a relatively flat, 10-mile ride for families and casual riders to a grueling 100-mile trek that will challenge top riders with steep grades.

In between those two extremes are rides or 25, 50 and 75 miles. All start and finish at the Hunt Club, 174 Long Lots Road.

Those considering a ride should be aware of registration fees and fundraising requirements to participate.

Registration fees for the 10-mile and 25-mile rides are $80 from today through Saturday; $110 for the 50- and 75-mile rides; and $130 for the 100-mile ride.

Additionally, participants must agree to raise a minimum amount in donations. Those are: 10-mile and 25-mile, $500 for adults, $250 for students; 50-, 75- and 100-mile, $750 for adults, $375 for children.

Riders will have until Sept. 28 to submit fundraising payments, according to the website, but organizers urge would-be participants to consider the requirements before registering.

Connecticut Challenge in the fall plans to open a cancer-survivorship center in Southport. Money raised during Saturday's rides will support that center and survivorship programs at Connecticut hospitals, the organization said in a news release.

A pre-race pasta dinner is planned Friday evening, and music and entertainment is planned at the Hunt Club Saturday.

For more information, visit http//bike.ctchallenge.org.