About Vortex ROK Kart Engines

Revolutionz USA carries the complete Vortex ROK engine lineup, each one blueprinted, dyno-tested, and delivered race-ready. Vortex engines are trusted worldwide for reliability, competitive parity, and proven performance from club racing to international championships.

Vortex VLR — 100cc Senior & Junior

An affordable, competitive 100cc air-cooled two-stroke engine featuring reed valve induction, electric start, and a Tillotson carburetor. The standard engine for ROK Cup USA VLR classes, growing rapidly at club and regional events. Available in Senior and Junior configurations.

Vortex Mini ROK & Micro ROK — 60cc Cadet

60cc two-stroke engines for young racers. The Mini ROK delivers unrestricted performance for ages 9-12, while the Micro ROK runs restricted for ages 7-10. Standard engines for ROK Cup USA cadet categories.

Why Buy from Revolutionz?

Championship-level preparation on every Vortex engine. Blueprinted, dyno-tested on our DynoTeg, and tuned for optimal power delivery. Our Vortex builds have earned podiums at ROK Cup USA, Champions of the Future, and regional series nationwide. Ships from Oceanside, California. Contact us or call 760-212-6052.