This MTB chainset features stiff & light carbon crankarms, which makes it easy to accelerate up to speed & maintain your momentum. Its carbon construction also gives it fantastic strength, without adding any unnecessary grams to your ride. FSA has kitted out this model with three aluminium chainrings that have been put through a CNC-machining process to shave off any excess material. As a result, you'll enjoy smooth & dependable shifting performance as well as further weight reductions. Coming complete with a four-bolt pattern, this is a great choice of upgrade for riders who want increased speed, durability & smoothness as they navigate across the mountain. Manufacturer's Part Numbers: 310-0066GD Shimano M10 Black/ Silver 44/32/22T 170mm Shimano 310-0068GD SRAM X10 Black/ Silver 44/32/22T 170mm SRAM 310-0069 SRAM X10 Black/ Silver 44/32/22T 175mm SRAM 310-0059 Black Silver 44/32/22T 175mm Shimano