KMC Racing Duo is the first chain and chainring combo to be completely designed for competitive environments. Unique “Jaws” teeth cradles chain rollers for the best chain interaction while providing ultimate pairing via “Chain Mate” tech between perfectly matched chainring teeth and chain rollers. The chain has been redesigned and upgraded for efficiency with double inner X-Bridge and optimal chamfering.
Exceptional component engagement enables a 5.2 watt energy savings, ability to ride 5% farther in the same time span, and more effectively maintain top speed. Racing Duo is truly built for speed and efficiency.

Client / Manufacturer

KMC CHAIN INDUSTRIAL CO.,LTD.
Tainan City, Taiwan

Designer

KMC CHAIN INDUSTRIAL CO.,LTD.
Tainan City, Taiwan