Sram Apex Chain D1 FlatTop 120Links 12 Spd Ja 61Shimano Tiagra 4700

61Shimano Tiagra 4700

Optimized rim wall thickness

ultra-fast carbon frame and carbon wheels

Constructed with breathable

right from the start

Sram Apex Chain D1 FlatTop 120Links 12 Spd Ja 61Shimano Tiagra 4700Description 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. FEATURES 12 speed Flattop technology allows for a narrower chain with quieter operation and increased strength and durability Includes Flattop PowerLock Polished steel with grey