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The HOT RODS WB139 wrist pin bearing is an OEM replacement designed for high-performance motorcycle engines. Crafted with case-hardened bearing cages, this component ensures durability and reliable operation under demanding conditions. The flat (KU style) and long shouldered (KZ style) bearing cage profiles are specifically chosen for their suitability in high RPM applications, providing enhanced stability and longevity. Manufactured with precision, the WB139 bearing maintains tight tolerances to ensure smooth engine performance and reduce wear over time. Its robust construction makes it ideal for riders seeking dependable parts that can withstand the rigors of aggressive riding and frequent maintenance intervals. Whether you're restoring a vintage bike or upgrading your current setup, the HOT RODS WB139 offers a perfect fit and reliable performance for Gas Gas, Husqvarna, and KTM motorcycles.
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