Stan’s makes tubeless bicycle technology, from the liquid sealant that replaces inner tubes to purpose-built rims, wheels and trail-side repair tools. The company says it developed its original tubeless method in 2000, and its products have since been tested with athletes and racers, including German mountain-bike racer Sabine Spitz at the 2004 Athens Olympics. Today, Stan’s continues to develop tubeless systems while supporting independent bicycle dealers and trail advocacy through its Connection Program.
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PrestacycleBorn from cyclist and engineer David Finlayson’s search for a better inflation tool, Prestacycle has made bicycle maintenance tools in upstate New York since 2006. Its compact, multi-purpose designs—beginning with the Prestaflator and now including patented torque tools—are built for everyday riders as well as professional mechanics. The company also supplies its technology internationally and to other cycling brands.REXFORD, NY
The SMART Tire Company, IncBorn from NASA Glenn Research Center’s Mars-tire work, The SMART Tire Company develops airless, superelastic tires using shape-memory alloy technology. Conceived through the 2020 NASA Startup Program, the company is commercializing the licensed technology for Earth-based products, beginning with the METL bicycle tire while also developing automotive and lunar-rover applications. Its 5,000-square-foot innovation lab in Akron supports prototype development, with a 50,000-square-foot manufacturing plant planned for 2026.AKRON, OH
DowntubeFounded in March 1996 by cyclist and Temple University graduate student Dr. Yan Lyansky, Downtube designs and sells folding bicycles directly to riders. The Greensboro, North Carolina company is known for pairing compact, travel-ready frames with unusually comfortable suspension, including its early commercially available suspension-and-belt-drive folders. Its direct design, import, distribution and retail model keeps the bikes focused on practical value rather than dealer markups.BENSALEM, PA
Redshift SportsRedshift Sports designs rider-focused bicycle components that smooth rough roads, reduce fatigue, and add comfort and control for longer rides. Its best-known ShockStop suspension stems and seatposts are joined by distinctive handlebar systems, aero components, illuminated pedals, and the Mousetrap adapters that convert SPD pedals to flats by hand. The company says its products are trusted by more than 200,000 customers and sells through dealers as well as directly to riders.PHILADELPHIA, PA