Kittie Knox was a cyclist during the bicycle boom of the late 19th century. She was biracial and became known not just for participating in a predominantly white sport, but also for the clothes she wore to do it.
Research:

Adams, Dan. “Ceremony honors cyclist who broke barriers: Kittie Knox showed pluck on wheels.” Boston Globe. 9/30/2013. https://www.bostonglobe.com/metro/2013/09/29/long-forgotten-bicycling-pioneer-who-broke-race-and-gender-barriers-honored/VAtfz0av4PqeHuHLiOw3sI/story.html
Bashore, Melvin L. "Astoria: The Starting Point in Long-Distance Cycling." Oregon Historical Quarterly, vol. 123, no. 3, fall 2022, pp. 254+. Gale In Context: U.S. History, link.gale.com/apps/doc/A728470987/GPS?u=mlin_n_melpub&sid=bookmark-GPS&xid=b2fe7364. Accessed 5 Dec. 2022.
"Bicycle." Britannica Library, Encyclopædia Britannica, 20 Dec. 2021. libraries.state.ma.us/login?eburl=https%3A%2F%2Flibrary.eb.com&ebtarget=%2Flevels%2Freferencecenter%2Farticle%2Fbicycle%2F79113&ebboatid=9265652. Accessed 7 Dec. 2022.
"Bicycles." Gale Encyclopedia of U.S. Economic History, edited by Thomas Riggs, 2nd ed., vol. 1, Gale, 2015, pp. 129-132. Gale In Context: U.S. History, link.gale.com/apps/doc/CX3611000095/GPS?u=mlin_n_melpub&sid=bookmark-GPS&xid=26448255. Accessed 7 Dec. 2022.
"Bicycling." American Eras, vol. 8: Development of the Industrial United States, 1878-1899, Gale, 1997, pp. 401-402. Gale In Context: U.S. History, link.gale.com/apps/doc/CX2536601761/GPS?u=mlin_n_melpub&sid=bookmark-GPS&xid=53eefb1f. Accessed 7 Dec. 2022.
Boyd, Herb. “Kittie Knox of cycling fame and fashion.” New York Amsterdam News. 11/24/2022-11/30/2022.
Cambridge Black History Project. “Katherine T. ‘Kittie’ Knox.” http://cambridgeblackhistoryproject.org/project/kittie-knox/
Cycling Authority of America. “The Bearings.” Via Internet Archive. Vol. 7, no. 2 (Feb. 10, 1893) https://archive.org/details/bearings111895cycl/
“The Science of Cycling.” https://www.exploratorium.edu/cycling/index.html  
Finison, Lorenz J. “Boston’s Cycling Craze, 1880-1900: A Story of Race, Sport and Society.” University of Massachusetts Press. 2014.
Finison, Lorenz J., "Cycling Historiography, Evidence, and Methods" (2014). Boston’s Cycling Craze, 1880-1900: A Story of Race, Sport, and Society. Paper 1. http://scholarworks.umb.edu/umpress_bostoncycling/1
"FIRST CARGO ELECTRIC-ASSIST TRICYCLE ADDED TO CITY FLEET, NAMED AFTER KITTIE KNOX." States News Service, 21 Aug. 2020, p. NA. Gale General OneFile, link.gale.com/apps/doc/A633136234/GPS?u=mlin_n_melpub&sid=bookmark-GPS&xid=85ac573a. Accessed 5 Dec. 2022.
Friends of Mount Auburn. “A Monument for Kittie Knox.” 9/30/2013. https://www.mountauburn.org/aaht-knox-monument/
Friends of Mount Auburn. “Kittie Knox (1874 – 1900).” Mount Auburn Cemetery. https://www.mountauburn.org/kittie-knox-1874-1900/
Guroff, Margaret. “American Drivers Have Bicyclists to Thank for a Smooth Ride to Work.” Smithsonian. 9/12/2016. https://www.smithsonianmag.com/travel/american-drivers-thank-bicyclists-180960399/
A.W. Bulletin and Good Roads. July 1895. Via HathiTrust. https://babel.hathitrust.org/cgi/pt?id=nyp.33433109933758&view=1up&seq=148
LaFrance, Adrienne. “How the Bicycle Paved the Way for Women's Rights.” 6/26/2014. The Atlantic. https://www.theatlantic.com/technology/archive/2014/06/the-technology-craze-of-the-1890s-that-forever-changed-womens-rights/373535/
Miller, Grace. “Breaking the Cycle: the Kittie Knox story.” Unbound: Smithsonian Libraries and Archives. 5/26/2020. https://blog.library.si.edu/blog/2020/05/26/breaking-the-cycle-the-kittie-knox-story/#.Y4-yfXbMJPZ
National Women’s History Museum. “Pedaling the Path to Freedom: American Women on Bicycles.” 6/27/2017. https://www.womenshistory.org/articles/pedaling-path-freedom
Neejer, Christine. "A conservative road: the bicycling rhetoric of Mary Sargent Hopkins." Intertexts, vol. 18, no. 1, spring 2014, pp. 93+. Gale Academic OneFile, link.gale.com/apps/doc/A383327852/AONE?u=mlin_oweb&sid=googleScholar&xid=60