Check the listing for details. WORKS CONNECTION Pro Fits Launch Start Device - Yamaha 12-P416. Condition: New. Listed at 159.95 USD. Weighing in at only 50 grams, this lightweight assembly is designed for easy installation and optimal performance. Engineered and manufactured in the U.S.A., the WORKS CONNECTION Pro Launch Start Device is the perfect addition for Yamaha riders looking to enhance their competitive edge.