Dah Ken Industrial Co., Ltd., established in 1972, specializes in car, motorcycle, and bicycle accessories, and operates under ISO9002 approved by SGS. Now, Dah Ken is well known all over the world as "RST", a name representing high tech suspension forks for bicycles with continuous research & development, RST supplies the most efficient & best performance forks every year. There are RST branch offices in the USA & Holland to do, marketing & offer full service. Dah Ken is not satisfied with what we already earn. Our goal is to offer affordable & highly evaluated products to our clients. Customer's comments are always gratefully welcomed.