The motorcycle crankshaft with pin bearing crank is a must-have item for anyone looking to replace or restore a classic or racing engine. This unit is compatible with a wide range of models, including the 144 SX, 144-SX, 150 SX, and XC series. Its precise pin bearings ensure smooth and reliable operation, even at high RPMs. Constructed from high-quality materials, this crankshaft is designed to withstand the rigors of daily use and frequent service intervals. Whether you're a seasoned mechanic or a beginner, this product will provide you with the reliable performance you need to complete your engine restoration project with confidence.