It’s not paid work but I’ve done a few illustrations for them out of my love for biking! If anyone is interested in illustrating bike themed stuff, and it’s not for every month as there’s always a different artist, please PM me and I can give you the email of the person to contact for more details. January’s theme is “feathers and fur” which is in line with the local furry convention coming up. What you illustrate and interpret based on just “feathers and fur” is up to you and it doesn’t have to be “furry con” related. Personally I think it would be cute to see Animal Crossing characters on bikes (you can later on sell prints of it at upcoming Artist Alley) :P for example I did Princess Bubblegum and Marceline fan art for the Ladies Ride event.
SJBP is run by a small independent group of volunteers who arrange these monthly themed rides and there are no restrictions on what you decide to do with the art you produce for them after submission as they recognize that it’s your work. They want original illustrations rather than resorting to swipe relatable images on Google. It is likely that they will sell spoke cards on the day of the theme of the ride but it only covers the cost of printing them since most attendees won’t pay more than $2-3 per laminated card and they’re limited run.