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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
The wider 13D pulleys increase efficiency and optimize chain management while compatibility with the new SHIMANO 12-speed cassettes significantly expands the range
Operating time 45 hours steady
3" (Medium)
20% polyurethane
- Detachable
Calzini Castelli Aero Race Pro 20 2026 Color:Black The wider 13D pulleys increaseAn aerodynamic sock without sacrificing the features that make it excellent. Thanks to collaboration with expert Italian knitters and the use of advanced machinery, a structure was created that combines smooth and textured zones to control airflow and reduce aerodynamic drag, without compromising comfort and fit. The result is a comfortable sock that stays in place and offers aerodynamic performance comparable to Lycra ribbed cuffs, with the advantage
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