Full range of ERGAL anodized Sidewinder gears from 16.8 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: 71XX
