Swiftwick Aspire Quarter Crew Socks - 4", Black, Medium Shock Pumps - Carbon fiber crank arms

- Carbon fiber crank arms with foam core are light and stiff

Shimano ZEE SL-M640 Right Shifter Dyna-Sys compatible for easy set-up and accurate

Manufacturer Part Number: 26033010116

190256-Q0-L

Manufacturer Part Number: BX-BL130DIMN-BL

Swiftwick Aspire Quarter Crew Socks - 4", Black, Medium Shock Pumps - Carbon fiber crank armsThe Aspire offers a thin, breathable feel and firm compression for enduring performance on runs, rides, and more. Engineered with moisture wicking fibers, it keeps feet and ankles dry, secure, and supported. Engineered with an ultra thin profile to deliver unparalleled fit & feel Signature Olefin fibers wick moisture, keeping your feet cool, dry, and blister free Grips the contours of your feet to support the arch and help reduce fatigue 53% Nylon 39%