IRD Ird Qb-55 Jis 68X110, Square Taper Bottom Bracket

Upgrade Your Bicycle's Performance with the Interloc Racing Design QB55 Cartridge Bottom Bracket - JIS, 68x110mm Experience exceptional durability and smooth pedaling with the Interloc Racing Design QB55 Cartridge Bottom Bracket, engineered for precision and reliability in every ride. Manufactured in Japan, this sealed cartridge bearing system is designed to seamlessly integrate with your bike's crankset, offering enhanced performance for both competitive cyclists and dedicated enthusiasts. ### Materials & Construction Constructed with robust steel cups and sealed cartridge bearings, the QB55 ensures long-lasting performance and resistance to dirt, water, and grime. The steel shell provides added strength, while the sealed bearings optimize low-friction operation, reducing wear and extending the lifespan of your drivetrain components. ### Performance & Engineering Optimized for efficiency, the QB55 features a 68mm shell width with a 110mm spindle length, delivering a stable and stiff connection for powerful pedaling. The JIS Square spindle interface guarantees precise compatibility with a wide range of cranksets, promoting smooth rotation, minimal resistance, and enhanced power transfer on every pedal stroke. ### Components & Technology Equipped with high-grade sealed cartridge bearings, the QB55 minimizes maintenance needs and protects internal components against contaminants. Its traditional square JIS 2-degree taper interface ensures a secure and consistent fit for crank arms designed for JIS standards, providing dependable performance across various riding conditions. ### Style & Use Case Designed for road, gravel, and mountain biking applications, the QB55 embodies a sleek, functional style that complements any bike setup. Its versatile 68x110mm dimension makes it suitable for a variety of bike frames, providing a secure fit and optimal compatibility for riders seeking durable and efficient bottom brackets. ### Innovative Features & Differentiator

• Enhanced durability with sealed cartridge bearings featuring robust steel cups for reliable performance under demanding cycling conditions.
• Precision engineering with a traditional JIS square taper interface, ensuring a secure fit and smooth power transfer for road and mountain bike applications.
• Made in Japan using materials, the QB55 Cartridge BB offers superior craftsmanship, corrosion resistance, and long-lasting performance.
• Optimized for 68mm BSA shells with a 110mm spindle length, providing compatibility with a wide range of cranksets and ensuring versatile use across different bike builds.
• Innovative design incorporating 24 TPI thread standards (BC1.37 x 24tpi RH/LH), facilitating easy installation and maintenance for professional mechanics and avid cyclists alike.