ECR located in Jiangsu, China, we began manufacturing and exporting h high performance racing crankshaft since 2000. the company has specialized over the years in manufacturing, designing and development of crankshafts for Motorcycles, Motocross, Dirt Bikes, ATV, UTV. After 20 years' hard-working, ECR has grown to be a professional high-quality crankshaft manufacturer in aftermarket parts industry and provides products and service for many customers around the world.