Alfine Shimano 9-Speed Bicycle Crankset with Chain Guard - FC-S501 (Black - 170 x 39T W/Single Ring,W/CG,W/BB,BSA)

Upgrade your city commuting setup with the Alfine FC-S501 Crankset - the perfect blend of style, durability, and performance for urban cyclists. Crafted with precision engineering and materials, this 2-piece road crankset is designed to enhance your riding experience whether you're navigating city streets or exploring scenic routes. Materials & Construction: Made from lightweight yet durable aluminum, the Alfine FC-S501 features sturdy crank arms and an integrated chainguard, offering reliable performance for daily commuting and urban touring. Its sleek black finish adds a modern aesthetic that complements a variety of bike styles. Performance & Engineering: Engineered for smooth power transfer, the FC-S501 supports 8 or 9-speed drivetrain configurations, making it versatile for various gear setups. The 130mm BCD (Bolt Circle Diameter) with a 39-tooth chainring provides optimal cadence and efficiency, ideal for city riding and light touring. The 24mm spindle ensures compatibility with most modern bottom brackets, while the 42.7mm chainline improves clearance and stability on road bikes. Components & Technology: This crankset includes an outbound BSA threaded bottom bracket designed for 68mm frames, ensuring easy installation and compatible with a wide range of city and touring bikes. The single chainring setup simplifies your drivetrain, reducing maintenance and minimizing weight-perfect for everyday commuting. The crank arm length of 170mm provides a comfortable riding position for most cyclists. Style & Use Case: With its sleek black finish and minimalist design, the Alfine FC-S501 is tailored for urban commuters, city tourers, and cyclists seeking reliable, stylish performance. Its versatile design allows it to function seamlessly in both front and rear configurations, offering flexibility for various bike setups and riding styles. Innovative Features & Differentiators: - Designed specifically for city and touring bikes, supp

• Enhanced durability and lightweight construction with aluminum crank arms and chainguard, providing reliable performance for city commuting and urban touring.
• Designed for 8 and 9-speed drivetrains with a 39T single chainring and 130mm BCD, offering smooth, efficient power transfer on city bikes.
• Includes outbound BSA threaded bottom bracket compatible with 68mm road frames, ensuring easy installation and versatility for different bike setups.
• Optimized for urban and recreational cycling, featuring a 42.7mm chainline suitable for road disc hubs and short chainstay frames, improving stability and handling.
• Innovative 2-piece design with stylish black finish, combining modern aesthetics with durable, performance-oriented engineering for daily city riding.