Innovative construction combines polyester and nylon components for superior durability
insulating materials to provide exceptional warmth during cold winter rides
or riders seeking a versatile upgrade that performs across multiple disciplines
while a non-slip heel cup ensures secure foot placement and stability throughout intense rides
Shimano 105 FC-RS520 12-Speed Road Crankset 50/34t 170mm | Alloy, Asymmetric BCD JPA/JPA2/JPA3/JPA4//JAL/JAL2/JAL3//JIN/JIN2/JIN3//JMN/JMN2/JMN3//JNY/JNY2//JCO/JCO2/JCO3//JNC/JNC2/JNC3/ Innovative construction combines polyester andUpgrade Your Road Cycling Performance with the Shimano 105 FC RS520 Crankset 170mm, 12 Speed, 50 34T, 110 Asymmetric BCD Optimize your road bike with the Shimano 105 FC RS520 crankset, engineered for seamless power transfer, durability, and advanced technology. Crafted with precision, this lightweight 2 piece, 4 arm crankset is designed to elevate your cycling experience whether you're tackling climbs, sprints, or long distance rides. Materials &