ARSTOP is a Brazilian cycling brand focused on tubeless systems and helping riders avoid punctures. The idea for a locally made tubeless tire sealant emerged after Brazil Ride 2015, when its founders saw an opportunity to offer cyclists a quality product at a more accessible price. After years of research and testing, ARSTOP began selling nationally in 2018, aiming to become a reference in bicycle tubeless solutions.

Its range includes sealants, valve stems, tools, and tubeless tape. Sealants are offered in 300 ml, 500 ml, and one-litre sizes; the products are made in Brazil, designed for tubeless tires, and rated to seal punctures up to 4 mm. The brand also provides guidance on system maintenance, including periodic checks and replenishing sealant.

ARSTOP serves both amateur and professional cyclists through its factory store, online channels, and reseller network. Based in Rio Claro, São Paulo, the company presents its products as practical, durable solutions intended to make cycling easier and reduce stops for tire repairs