SRAM RED Flattop Chain - 12/13-Speed, 126 Links, Flattop, PowerLock, Rainbow, E1 X-LAB ANT+ and Bluetooth Low Energy

ANT+ and Bluetooth Low Energy dual wireless connectivity

and you're looking for performance where it really counts: a lightweight frame

ForkUnicrown high-tensile steel

Kosher certified

it’s more than the fastest Tarmac ever - it’s the world’s fastest race bike

SRAM RED Flattop Chain - 12/13-Speed, 126 Links, Flattop, PowerLock, Rainbow, E1 X-LAB ANT+ and Bluetooth Low EnergySRAM took the lightest and most durable chain theyve ever made and made it lighter. With no compromises. Their HollowPin construction is lighter and stronger than a solid pin, and cutouts in the outer and inner plates drop 13g from the previous generation. This results in a lighter, faster, stronger and more durable chain. Flattop technology enables a narrower chain with quieter operation and increased strength and durability Hard Chrome plated inner