Faster, stronger, and more accurate. Get rid of presta valves, and “Twist-In” a Mr. Stubby™ Schrader Valve Core. Unlike other “adaptors”, Mr. Stubby™ converts the presta valve core, allowing riders to check PSI, add sealant, and add air from every gas station pump across the country. For racers, Mr. Stubby™ is quicker to inflate than a presta valve. Just put the Co2 on and inflate!
It’s as easy as 1, 2, 3!
Mr Stubby™ changes everything. Buy one, and don’t worry about presta valves anymore!