Flattop technology is so much more than a distinctive look. It allows our 12-speed chain to be lighter, stronger and more durable than anything that came before. The Apex chain uses the same construction as the Rival and Force chains, with a polished grey finish.· 12-speed· Flattop technology allows for a narrower chain with quieter operation and increased strength and durability· Includes Flattop PowerLock· Polished steel with grey finish