SAPIM Brass Polyax Secure Lock Nipple 14G - 14mm

SAPIM Brass Polyax Secure Lock is a brass nipple designed with an emphasis on durability and resistance to loosening.

The Polyax shape is designed to easily accommodate the angular differences between the rim and the spoke. For deep-section rims, offset rims, small-diameter wheels, and disc brake wheels—where spoke lines are prone to stress—the ability for the nipple and spoke to naturally find their proper angle contributes to the overall durability of the wheel.

Furthermore, the Secure Lock specification suppresses nipple loosening, making it harder for spoke tension to drop. In scenarios involving significant vibration or load, such as long-distance touring, gravel riding, MTB, cargo bikes, and E-bikes, the reliability of the nipple directly impacts the reliability of the entire wheel.

While heavier than aluminum nipples, brass nipples remain one of the most reliable choices if you prioritize durability, ease of handling, and ease of readjustment.

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