Freeline manufactured "DF" line magnesium wheel sets. These come standard on all Freeline manufactured karts, including BirelART, Ricciardo, CL Kart, Kubica Kart, Synergy Kart, and CompKart.
Available in 130mm/130mm sets, 130mm/180mm sets, and 130/210mm sets. Sold as a full set of 4 wheels.