SRAM's Red D1 12s Chain is a flattop chain featuring a unique link shape that allows the chain to be narrower and lighter while increasing strength and providing more tolerance between cogs.
â€¢Flattop technology enables a narrower chain with quieter operation and increased strength and durability
â€¢Hard Chrome plated inner and outer plates allow for faster and more precise shifts
â€¢HollowPin construction provides increased strength and efficiency
â€¢Requires Flattop Powerlock chain connector