The big ride is set for the weekend of Oct. 5-6.
The Octoginta bicycle ride, which is expected to attract 700 to 800 riders, is marking its 27th year.
"This is the ride that the Lawrence Bicycle Club is known for," said Beth Krishtalka, a 1996 Octoginta organizer.
The club sponsors the ride, which attracts riders from across the state.
"There's lots of different skills of riders and lots of different bikes," she said.
So far, about 125 people have preregistered for the ride, which will begin at 8:30 a.m. Oct. 6. Other rides will be held Oct. 5.
The ride's name was coined several years ago by a Kansas University linguistics professor. It comes from the terms "octo" for 80, and "ginta" for ride or route.
Octoginta on Oct. 6 will actually be comprised of three routes, one of about 50 miles, another of about 72 miles and another of about 94 miles, Krishtalka said.
This year's route will go north out of Lawrence, through Lecompton and Perry. A police escort will be with riders in the city, she said.
Registration and information about events will be available from 8 a.m. to 7 p.m. Oct. 5 at Centennial School, 2145 La.
Late registration and check-in for the Oct. 6 ride will be held at 7 a.m. at the starting point of the ride, the Douglas County Judicial and Law Enforcement Center.
Oct. 5 events will include two 30-mile rides, a racing clinic, a mountain bike ride and a swap meet. Fees will be charged for some activities.
A registration fee also will be charged for the Oct. 6 ride. The fee includes lunch.
For more information, call Jim Turner between 6 p.m. and 9 p.m. at 842-5174.