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Bearings are critical components in your Aprilia's engine that support the crankshaft and other rotating parts and allow for low-friction movement. They contribute to the stability, alignment and damping of vibrations in the engine.

There are several types of engine mounts, including ball bearings, roller bearings and plain bearings. They are made of high quality steel or other robust materials and are designed according to the specific requirements of the engine and the loads.

Engine bearings must be inspected regularly and replaced when worn or damaged to ensure smooth engine operation. Careful lubrication and proper mounting of the bearings are also essential to ensure optimum engine performance and longevity.