Shimano Dura-Ace FC-R9100/FC-9000 Crank Bolt – Updated Version 2

Shimano Dura-Ace FC-R9100/FC-9000 Crank Bolt – Updated Version 2 is designed to meet the demands of serious cyclists seeking precision and durability in their drivetrain setup. Whether you’re racing on rugged terrain or tackling steep climbs at high torque, this premium crank bolt ensures secure attachment of your chainset spider to the bottom bracket spindle—critical for maintaining power transfer and preventing costly failures mid-ride. Crafted from cold-forged aluminum alloy, this updated version combines lightweight design with unmatched strength-to-weight ratio, reducing rotational mass while enhancing resistance to wear and corrosion compared to older models or generic bolts.

Engineered specifically for Shimano Dura-Ace FC-R9100 and FC-9000 cranksets (including Di2 electronic systems), this bolt guarantees flawless compatibility with your high-end drivetrain components. Its precision threading aligns seamlessly with factory specifications, ensuring easy installation and removal using standard hex tools—a stark contrast to inferior aftermarket options that may strip threads or fail under pressure.

Unlike competing products that prioritize cost-cutting materials over performance, this Version 2 update features refined surface treatment for smoother engagement during tightening and improved fatigue resistance after repeated use. Ideal for professional mechanics and discerning cyclists prioritizing longevity and reliability in ultra-high-end setups, it’s a must-have upgrade for those aiming to optimize their Dura-Ace groupset’s efficiency and lifespan without compromising on quality or performance metrics like gram savings per bolt (just 4g per piece).

For riders who demand nothing less than perfection in every component—especially those running Shimano’s top-tier R9100/9000 series—this bolt delivers unmatched confidence under extreme conditions while maintaining strict adherence to exacting engineering standards expected from Shimano’s flagship Dura-Ace lineup.