Enhance your bicycle's performance and reliability with the Full Speed Ahead QR-20 Self-Extracting Crank Bolt Assembly, featuring an M17 Bolt with an M27 Cap. Designed for precise fit and effortless maintenance, this high-quality crank arm fixing bolt is an essential upgrade for serious cyclists and bike mechanics alike. Materials & Construction: Crafted from durable, corrosion-resistant steel with a hardened finish, the FSA QR-20 bolt ensures long-lasting performance even under demanding riding conditions. The robust materials provide a secure fit while resisting rust and wear, ideal for mountain biking, road cycling, and daily commuting. Performance & Engineering: The innovative self-extracting design streamlines crank arm removal and installation, reducing maintenance time and ensuring a secure, wobble-free connection. The M17 bolt combined with the M27 cap delivers a precise, torque-driven fit-supporting power transfer and pedaling efficiency during intense rides. Components & Technology: Featuring precision-machined threads and engineered with high-strength alloy components, this assembly ensures optimal load distribution and maximum durability. Its unique self-extracting mechanism minimizes tool requirements, enabling quick and hassle-free crank arm servicing. Style & Use Case: With its sleek design and professional-grade engineering, the Full Speed Ahead QR-20 bolt assembly suits a wide range of bicycle frames and cranksets. Perfect for enthusiasts looking to upgrade or replace worn-out bolts, it enhances bike aesthetics while improving performance across various cycling disciplines. Innovative Features: The standout feature of this assembly is its self-extracting capability, simplifying the removal process without compromising security, making regular maintenance easier and more efficient. Compatible with multiple crankset brands, it offers versatile, high-performance solutions for modern bicycles. Upgrade your bike's drivetrain with confidence-choose the F