The FONGKNOX Square hole bearing middle shaft is designed for use with bicycles, providing smooth and secure functionality in various applications. Measuring 68mm in diameter and featuring a four-hole configuration, this middle shaft ensures a perfect fit for bicycles with BSA middle shaft systems. Its adaptability makes it suitable for various models and brands, allowing for easy replacement or upgrades.
This FONGKNOX middle shaft is constructed with a square tapered shaft, providing a superior balance for superior performance. The crank-120mm specifications ensure precise and efficient functionality, ensuring optimal power transfer from the pedals to the bike's drive train.
The square hole bearing configuration offers a wide range of motion, enabling the crankshaft to rotate freely while maintaining maximum durability and longevity. Additionally, the double seal system ensures the shaft remains lubricated and free from debris, even in extreme conditions.
Incorporating screws for easy installation and replacement, the FONGKNOX Square hole bearing middle shaft is a perfect addition to any bicycle enthusiast's toolkit. Its robust design and versatility make it a worthwhile investment in your cycling journey.
