< > Share with a friend Drive Systems 520 Conversion Chromoly Steel Drilled Countershaft Sprocket - Aprilia RXV/SXV 37400D Our Price:  $28.95 Add to Cart Front Sprocket Size 131415 Qty : Add Review Ask a Question All Drive Systems sprockets are made of case hardened chromoly steel and drilled for less rotating weight. There are no reviews for this product. There are no questions asked for this product. Similar Products Drive Systems 520 Conversion Chromoly Steel Drilled Countershaft Sprocket - Aprilia RXV/SXV $28.95 More Details... Drive Systems 520 Black Hard Anodized Alloy Rear Sprocket - Aprilia RXV/SXV $59.95 More Details...     Ok