The reduction in molecular friction also improves rolling resistance, therefore increasing fuel economy. Tire Specifications:Load / speed index: 58S.Construction: Bias. Experience the full potential of your maxi-scooter with the hypersport-inspired Battlax SC2. Whether blasting through the morning commute or discovering your new favorite backroad, the SC2 has you covered. NanoPro-Tech NanoPro-Tech is the name of a technology that facilitates the realization of the required features in a tire by controlling the material microstructure through structural design at the molecular level. It is one of Bridgestone's fundamental technologies. RC Polymer RC Polymer technology optimizes the distribution of silica within the rubber compound and improves tread flexibility allowing greater contact with the road surface in both hot and cold conditions.