Revolutionz USA carries the complete 60cc cadet engine lineup for competitive junior karting. Our 60cc selection includes the IAME Mini Swift, IAME Micro Swift, Vortex Mini ROK, and Vortex Micro ROK — the most widely run cadet platforms at clubs and national series across the US. Every engine is blueprinted, broken in, and dyno-tested before shipping. The right foundation for young competitors from day one.