Tzung Dar was established in 1970 of April, since then we have been manufacturing connecting rods used for motorcycles and other automotives. We are rods worldwide to supply aftermarket companies besides these Taiwan motorcycle companies. Our connecting rods are used proud to announce that we are the first company in Taiwan who was certificated of ISO 9001:2000 version. It made us to become the exclusive supplier source for most of the great branded motorcycle manufacturers such as YAMAHA, SUZUKI, PGO etc. Since their factories were built in Taiwan. Furthermore, we also export our connecting for engines of Motorcycle, Motocross, Watercraft, Chain Saw, ATV, Snowmobile, Lawn Mower, Outboard Boat and Automobile. Our technical teams are continuously developing automatic machinery to produce high quality products which are of international standards, as well as increasing our production capacity. Therefore, we are the only reliable supplier who is capable of meeting your quality standards/requirements under our competitive pricings.