Shimano 2013 105 10 Speed Bicycle Chain CN 5701 ICN5701116

The asymmetrical design of the new 105 chain helps tame the most challenging shifts: inward shifts in the rear and outward shifts on the front. The unique profiling creates an extra advantage in moving the chain quietly and quickly to bigger rings and cogs even under extreme loads. Increases contact with gear teeth for improved power transfer shifting under load. Smooth shifting with less chain suck.