Perfect Fit for YX125 & YX140: Designed to fit both YX125 and YX140 bottom ends, as they use the same crankshaft, providing seamless compatibility for your pit bike. 56.3mm Stroke & 13mm Pin: Features a 56.3mm stroke and a 13mm pin, ensuring smooth and reliable engine performance for improved acceleration and power. Durable Construction: Built with high-quality materials to withstand tough riding conditions, offering strength and longevity for long-term use. Enhanced Engine Performance: Ideal for replacing your worn-out crankshaft, it ensures your YX125 or YX140 engine operates at its best. Easy Installation: Simple to install with no complicated modifications required, making it a great choice for both DIY mechanics and professional repairs.
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