The Ricta Lutzka Black All Star Chrome Core Wheels are made with your Ricta Chrome Core Street Formula. A Greg Lutzka pro wheel from Ricta Wheels. Chrome-colored cores with slim, lightweight shapes, updated wheel and core embossed graphics, larger back graphics, 81B White Lightning urethane and 78D durable cores. More than 18 months of research and development has created the White Lightning Formula, the world's highest performance urethane. More resistant to flat spots than any other wheel formula on the market and simply the fastest. Sizes available as seen below. Wheels sold in set of four.