Complex sentence: The business expanded under the Carnielli family after Bottecchia's death, making Bottecchia a household bike brand name, and in 2006 over 50,000 Bottechia bikes were sold in Europe.
Split into simpler sentences: The business expanded under the Carnielli family after Bottecchia's death. In 2006 more than 50,000 Bottechia bikes were sold in Europe.