Range of ERGAL anodized Sidewinder gears from 17,5 mm diameter. Compatible with NSR/Proslot/Slot.it slot cars. Extralight, new design. Made from solid ERGAL bar by CNC machines and anodized in different colors, NSR gears are designed for a smooth mesh and long life. Over 20% lighter than the previous aluminum version (0,40 grams!). More life on the track. RECOMMENDED PINIONS CODE: 69XX
