Ball bearing set crankshaft from Pinasco for Piaggio Ciao, Bravo, Si Boxer engine cases from Polini, Malossi and Pinasco.
The bearings have balls guided in a plastic cage. This polyamide cage reduces the friction which makes the bearing excellent for high speeds. The increased clearance (C4) is ideal for heavily tuned engines.
Note: Be careful when mounting the bearing. In order not to damage the bearing cage, do not heat the bearing higher than 125°C and pull in the crankshaft with a suitable tool.
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