Complex sentence: Univega is a brand of bicycles, created during the bike boom of the 1970s by Ben Lawee (1926--2002)--who founded Lawee Inc. to design, specify and import bicycles manufactured initially in Italy by Italvega and subsequently in Japan by Miyata.
Split into simpler sentences: Univega is a brand of bicycles, created during the bike boom of the 1970s by Ben Lawee (1926--2002)--who founded Lawee Inc. to design, specify and import bicycles manufactured by others. Univega bikes were manufactured initially in Italy by Italvega and subsequently in Japan by Miyata.