Wingspan Extenders XL 42.5 the new Mach 4S L

the new Mach 4S L carves an impressive 280 grams out of the previous generation Mach 4S L

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INTEGRATED CHEST STRAP DESIGN

This one is

Wingspan Extenders XL 42.5 the new Mach 4S LTriRigs Wingspan Extenders are expertly crafted to deliver ultimate customization for your triathlon bike setup, enabling precise positioning of arm cups, extensions, and other aero bike accessories. Designed for athletes who understand the importance of triathlon bike optimization, these extenders provide the fine tuned adjustments that can make all the difference in your performance. In the world of triathlon bike aerodynamics, every millimeter