Nitrogen Ultegra Di2 Size:XL these are a great all-purpose

these are a great all-purpose pad

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LX BR-M585

Good ventilation with 4 air inlets and 14 air outlets connected with flow channels

Nitrogen Ultegra Di2 Size:XL these are a great all-purposeDeveloped and engineered for optimal interaction between aerodynamic frame design, modern geometry, flexible rider fit & world class components, the Nitrogen platform is built to perform in real world conditions, offering the performance and ride quality Argon 18 is recognized for. The Nitrogen delivers speed, lightness, fit and ride optimization.