The English language version of Bicyclopolis was printed in a limited first edition. Since then, I have been getting requests on social media about purchasing books. Someone in the comics biz here in the USA has offered to find a publisher. In the meantime, I recommend purchasing the French version published by Y.I.L. at their website.
For many reasons, it has been difficult finding an English language publisher for Bicyclopolis. For that reason, I am not writing and drawing stories for print. I prefer making videos which are more accessible to people via the Internet. My best effort in that direction is Mazz Alone which you can view on Vimeo for free.