For the past two years, bicyclists in the region have met the goal of logging 1 million miles in May.
This year the challenge has been upped to 2 million rides.
The challenge comes way of Bike Month co-chairs West Sacramento Mayor Christopher Cabaldon and Sonja Atkins, coordinator with Mercy San Juan Medical Center Safe Kids.
The two are hoping that cyclists pledge miles at the website Mayisbikemonth.com.
And after cyclists log in to pledge miles, Cabaldon and Atkins hope riders will also make a mileage challenge to friends via Facebook or by email.
This May marks the sixth year region volunteers, public agencies, businesses and bicycling enthusiasts have partnered to promote bicycling.
The region includes El Dorado, Placer, Sacramento, Sutter, Yolo and Yuba counties.
All trips by bicycle count towards the 2 million mile goal this year, whether it is a ride to work, school, shopping, or for recreation.
New this year is a Pedal Saver program, where participating businesses are giving discounts and freebies for people who bike in.
Bike Month entails weekly prize drawings, individual, group and employer challenges, rallies, awards, safety clinics and organized rides.
Over 40 events are scheduled throughout May, including the Bicycle Film Festival and the Amgen Tour of California.