カーボンクランクセット（320g） | シマノ ダイレクトマウント | 160mm～172.5mm

Serenade BC02 Ultra-Light Carbon Fiber Crankset (320g | One-Piece Molded)

The ultimate balance of featherlight weight, extreme rigidity, and rugged durability. Weighing an incredible 320 grams, the Serenade BC02 Carbon Crankset sets a new standard for high-performance bicycle drivetrains. By blending advanced aerospace-grade materials with cutting-edge manufacturing techniques, this crankset strips away critical grams while delivering the uncompromising power transfer required by elite road racers, gravel riders, and cross-country (XC) mountain bikers.

Core Performance Features

• Optimized Stiffness-to-Weight Ratio: Engineered with premium Toray T800 and T1000 carbon fiber, the structural layout significantly improves the overall rigidity of the crank arms. This meticulous material blend achieves the perfect balance between featherlight weight and stiff, flex-free power transfer under high sprint wattages.

• One-Piece Molding Technology: The carbon fiber structure is manufactured using advanced one-piece molding techniques. This seamless construction eliminates internal weak points and structural joints, ensuring maximum long-term performance, uniform strength, and safety over harsh terrain.

• Advanced Sealing Technology: Designed for worry-free riding in all weather conditions, the integration interface features advanced sealing technology. It effectively seals out trail dust, mud, road grime, and water, drastically reducing maintenance intervals and extending the life of your drivetrain components.

• Integrated Titanium Spindle: At the core of the BC02 is a precision-machined titanium shaft. Titanium provides exceptional tensile strength and superior corrosion resistance while keeping the overall spindle weight to an absolute minimum.

• Modern Bike-Fit Length Options: Available in six precision lengths from a standard 172.5mm down to a compact 160mm. Shorter crank arms open up the rider’s hip angle at the top of the pedal stroke, improving aerodynamics and reducing the risk of pedal strikes.

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