FSA 8420ST Power Drive Steel Cartridge Bearings English Bottom Bracket 73x113mm

Description

Upgrade your bicycle’s drivetrain with the FSA 8420ST Power Drive Steel Cartridge Bottom Bracket – the perfect choice for cyclists seeking reliable performance, durability, and precision. Crafted with high-quality materials and engineered for optimal efficiency, this bottom bracket ensures smooth power transfer and long-lasting use for your mountain, road, or hybrid bike.

Materials & Construction:

Built with a forged hollow SCM4130 chromoly spindle, the FSA 8420ST guarantees exceptional strength and stiffness, reducing flex and maximizing pedaling efficiency. The cold-forged aluminum cups provide a lightweight yet durable interface with your frame, ensuring a secure fit and corrosion resistance. The sealed industrial-grade 6002KRS cartridge bearings feature oversized 3/16 diameter balls, delivering superior load distribution and longevity.

Performance & Engineering:

Designed for high-performance cycling, this bottom bracket features double Snap seals that efficiently protect against water, dirt, and debris, maintaining optimal bearing function regardless of weather conditions. The robust cartridge bearing design offers smooth rotational movement, reducing friction and increasing riding comfort over long distances and challenging terrains.

Components & Technology:

Equipped with sealed industrial bearings and a precision-engineered spindle, the FSA Power Drive system provides dependable power transfer and minimal maintenance. Its 73x113mm spindle length is ideal for numerous crankset configurations, while the 34mm shell ID and 73mm shell width ensure compatibility with a wide range of bike frames.

Style & Use Case:

With its sleek silver finish, the FSA 8420ST Power Drive Steel Cartridge Bottom Bracket adds a professional aesthetic to your bike while delivering top-tier function. Whether upgrading your race bike, mountain rig, or daily commuter, this bottom bracket is engineered for durability, efficiency, and peace of mind on every ride.

Key Features:

– Forged hollow SCM4130 chromoly spindle for strength and stiffness

– Heavy-duty 6002KRS sealed bearings with oversized balls for durability

– Cold-forged aluminum cups for lightweight stability and corrosion resistance

– Double Snap seals for comprehensive weather protection

– Compatible with English bottom bracket shells (73mm width, 34mm I.D.)

Optimize your bike’s performance with the FSA 8420ST Power Drive Steel Cartridge Bottom Bracket – engineered for cyclists who demand reliability, efficiency, and value. Perfect for competitive racing, trail riding, and everyday cycling. Order now for smooth, efficient pedaling mile after mile!

• Premium steel cartridge bearings engineered for durability and performance, providing smooth power transfer and long-lasting reliability under demanding cycling conditions.
• Constructed with a forged hollow SCM4130 chromoly spindle for enhanced stiffness, power efficiency, and precise pedaling motion on high-performance mountain and road bikes.
• Sealed industrial 6002KRS cartridge bearings with oversized 3/16 balls deliver superior load support, resistance to dirt, water ingress, and contaminants, ensuring consistent performance in challenging weather.
• Cold-forged aluminum cups offer lightweight strength and corrosion resistance, enabling efficient power transfer while maintaining a sleek, low-profile design suitable for aggressive riding styles.
• Designed specifically for FSA Power Drive splined cranksets, this bottom bracket features double snap seals for optimal weather protection, making it an ideal upgrade for riders seeking durability, precision, and minimal maintenance.