NEW Swiftwick Aspire Four Socks - 4 inch Lagoon Blue X-Large variant-size-39-eu-womens - Designed to keep the

- Designed to keep the rear derailleur guide pulley at an optimum distance from each sprocket for accurate SIS shifting

Split-able Alternator V

One-piece technology: Minimum numbers of seams to enhance aerodynamics and minimize risks of irritation

the X-Bridge technology

Steel stamped cogs

NEW Swiftwick Aspire Four Socks - 4 inch Lagoon Blue X-Large variant-size-39-eu-womens - Designed to keep theA firm compression sock with a solid four inches of ankle support for cycling, running and any other endurance sport. Firm compression provides contoured support and prevents bunching Lightweight Olefn fber in a minimum cushion design is cool, wicks moisture and dries quickly to keep you performing at your best Y Heel contour creates a contoured heel pocket that moves with the foot Virtually invisible toe seam eliminates friction in the toebox Mesh